Owner's Manual
Explanation of Graphical Symbols

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
The lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufcient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The above warning is located on the top of the unit.
IMPORTANT SAFETY INSTRUCTIONS
Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not t into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Only use attachments/accessories specied by the manufacturer. Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

(UL60065_03)

FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/ or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does

If you notice any abnormality
If the power cord or plug becomes frayed or damaged, or if there is a sudden loss of sound during use of the device, or if any unusual smells or smoke should appear to be caused by it, immediately turn off the power switch, disconnect the electric plug from the outlet, and have the device inspected by qualied Yamaha service personnel. If this device should be dropped or damaged, immediately turn off the power switch, disconnect the electric plug from the outlet, and have the device inspected by qualied Yamaha service personnel.

Do not open

Do not open the device or attempt to disassemble the internal parts or modify them in any way. The device contains no user-serviceable parts. If it should appear to be malfunctioning, discontinue use immediately and have it inspected by qualied Yamaha service personnel.
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage to the device or other property. These precautions include, but are not limited to, the following:
Remove the electric plug from the outlet when the device is not to be used for extended periods of time, or during electrical storms. When removing the electric plug from the device or an outlet, always hold the plug itself and not the cord. Pulling by the cord can damage it. Do not expose the device to excessive dust or vibrations, or extreme cold or heat (such as in direct sunlight, near a heater, or in a car during the day) to prevent the possibility of panel disguration or damage to the internal components. Do not place the device in an unstable position where it might accidentally fall over. Do not block the vents. This device has ventilation holes at the sides to prevent the internal temperature from becoming too high. In particular, do not place the device on its side or upside down. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), or even re. Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other electric devices. Doing so may result in noise, both in the device itself and in the TV or radio next to it.

Location

Before moving the device, remove all connected cables. When setting up the devices, make sure that the power switch can be easily turned ON/OFF. If some trouble or malfunction occurs, immediately turn off the power switch and disconnect the plug from the outlet. If the device is mounted in an EIA standard rack, carefully read the section Precautions for Rack Mounting on page 7. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), malfunction, or even re. Avoid setting all equalizer controls and faders to their maximum. Depending on the condition of the connected devices, doing so may cause feedback and may damage the speakers.

IMX644 Owners Manual

Connections

IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance with the following code: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows: The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or GREEN-andYELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
This applies only to products distributed by Yamaha Music U.K. Ltd. (3 wires)
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this device must accept any interference received including interference that may cause undesired operation. See user manual instructions if interference to radio reception is suspected.
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (FCC DoC)

Table of contents

Introduction
Features... 6 Precautions for Rack Mounting.. 7 Before Operation... 7 Acquiring the IMX644 Manager Software and Manuals. 7

Controls and Functions

Front Panel... 8 Rear Panel... 10
System Example... 12 Connectors and Cables.. 13

Mix Functions

Input Channels.. 15 Output Channels... 17 Others... 17

Appendix

Troubleshooting... 18 Memory Initialization... 18 IMX644 Status List... 19 Remote Control Protocol Specifications.. 20 General Specifications... 21 Input/output Characteristics.. 21 Electrical Characteristics.. 22 GPI Circuit Example... 23 Dimensions... 24 Block Diagram... 25
Thank you for purchasing the Yamaha IMX644 Digital Installation Mixer. In order to take full advantage of the IMX644 functionality and to ensure trouble-free operation, please read this owners manual carefully before use. After you have read the manual, keep it in a safe place for reference when needed.

Features

Versatile Input/Output Conguration
The IMX644 features an input/output configuration that is ideal for a wide range of applications: six mono inputs, four stereo inputs, two stereo outputs, two mono outputs, and one dedicated stereo output for recording.

) [SIGNAL/PEAK] Indicators
These indicators light green when a signal is detected at OUTPUT 3 and 4. The [SIGNAL/PEAK] indicators also light red to indicate excessive output level at the corresponding output. If excessive output level is indicated, reduce the input level or output level.

5 Level Knobs

These knobs adjust the input level of the corresponding mono channels.

! Level Knobs

These knobs adjust the output level from the corresponding output channels.

STEREO INPUT Section

6 Matrix Indicators
The outputs to which each stereo input are assigned are displayed by orange indicators.

@ MEMORY [A] [D] Buttons

Recalling Memories To recall a memory press and hold one of the MEMORY buttons for about 2 seconds the buttons indicator will light and the mix settings assigned to that memory will be recalled. Settings are stored in the IMX644 memories via the IMX644 Manager application. Memories A through D all contain the same settings when the unit is initially shipped from the factory. Switching Modes To start the unit in IMX644 Manager mode, hold the MEMORY [D] button while turning the [POWER] switch ON. The unit starts up in the normal mode if the power is turned on while the MEMORY [D] button is not held.
IMX644 Manager Mode This mode allows communication with the IMX644 application. Communication with AMX and similar external controllers cannot occur in this mode. This is the units normal operating mode. Communication with AMX and similar external controllers is also possible in this mode. Communication with the IMX644 Manager application is not possible in this mode.
7 [SIGNAL/PEAK] Indicators
These indicators light green when a signal is detected at the corresponding stereo input. The [SIGNAL/PEAK] indicators also light red to indicate excessive input level at the corresponding input. If excessive input level is indicated, reduce the output level of the connected source.
The [SIGNAL/PEAK] indicator may light red when certain types of signals are received via the OPTICAL input, but in such cases the signal is within range and no further adjustments are required.

8 Level Knobs

These knobs adjust the input level of the corresponding stereo channels.

Normal Mode

# [POWER] Switch & Indicator
Turns power to the unit ON or OFF. The indicator lights green when the power is ON.
Since the level settings for each channel are stored in the IMX644 unit itself, be sure that the IMX644 Manager application is online when setting up the memories.

Rear Panel

Refer to Connectors and Cables on page 13 for details on connectors and cables for use with the IMX644. 8 9

1 [AC IN] Connector

Connect the supplied AC cable here. First connect the AC cable to the IMX644, then plug it into an appropriate AC outlet.
5 L/R Connectors 1, 2, 3, 4A, and OPTICAL 4B
The output from CD players and other stereo line-level sources can be connected to these stereo inputs.

2 Earth Screw

For maximum safety, please earth the unit properly. The supplied AC power cable is a 3-wire type, so if the AC outlet used is properly earthed the IMX644 will be earthed as well. Hum and interference may by further reduced in some cases by also connecting the earth screw to an earth point.
The 4A (L/R) connectors and 4B (OPTICAL) connector cannot be used simultaneously.

REC OUT Section

6 L/R Connectors A and OPTICAL B
A CD recorder or other stereo recorder can be connected here.

3 [REMOTE] Connector

This RS-232C connector allows communication with a computer running the IMX644 Manager application or external controllers. The [REMOTE] connector cannot be used simultaneously with the front-panel [USB] connector. If both connectors are connected, the front-panel [USB] connector takes priority.
A feedback loop can occur if a CD recorder or similar device is connected to both a STEREO INPUT and the REC OUT connectors. In such cases use the IMX644 Manager application MATRIX controls to turn the OUTPUT channel to REC OUT connector assignment off.

4 [GPI] Connector

This 25-pin D-sub GPI (General Purpose Interface) connector provides eight input ports and eight output ports for a variety of control signals, plus one dedicated output port that indicates the units power ON/OFF status.

7 Euroblock Connectors

Microphones and similar mono sources can be connected to these balanced input connectors. High-quality head amplifiers are built in. Refer to page 13 for instructions on connecting to the Euroblock connectors.

8 [PAD] Switches

When ON, input to the corresponding mono channel is attenuated by 34 dB. The pads are ideal for matching input sensitivity to the output from wireless microphone tuners and similar highoutput source devices.

9 [+48V] Switch

When ON, 48V phantom power is applied to the corresponding mono input. Turn the [+48V] switch ON for channels to which phantom-powered condenser microphones or other devices that require phantom power are connected.

Make sure that phantom power is turned OFF unless it is needed. When turning phantom power ON, make sure that no equipment other than phantom-powered devices such condenser microphones are connected to the corresponding MONO INPUT connectors. Applying phantom power to a device that does not require phantom power can damage the device. Do not connect or disconnect a device to a MONO INPUT while phantom power is applied. Doing so can damage the connected device and/or the unit itself. Make sure that the systems power ampliers and/or powered speakers are turned OFF while turning phantom power ON or OFF to prevent damage to the speakers. We also recommend setting all level controls to minimum level. If these measures are not observed sudden high-level noise bursts can potentially damage equipment and even the hearing of people in the area.

) Euroblock Connectors

These balanced output connectors are for connection to power amplifiers and other output devices. OUTPUT 1 and 2 are stereo outputs. The A connector outputs the left-channel signal, and the B connector outputs the rightchannel signal. OUTPUT 1 and 2 can also be assigned for mono output via the IMX644 Manager application. OUTPUT 3 and 4 are mono outputs. Refer to page 13 for instructions on connecting to the Euroblock connectors.

System Example

Computer

Cassette deck

Microphone

MD player

CD recorder

Wireless microphone

Wireless tuner
AMX or similar external controller

Power amplier

External control input/ output device

Zone 1 speakers

Power amplier Zone 2 speakers

Zone 3 speakers

Zone 4 speakers

Connectors and Cables

[MONO INPUT] and [OUTPUT] Connectors (3-pin Euroblock)
Connect external microphones, amplifiers and other devices to the rear-panel [MONO INPUT] and [OUTPUT] connectors via cables fitted with the supplied 3-pin Euroblock plugs. Follow the procedure outlined in this section to attach the Euroblock plugs to the appropriate cables.

Front Panel Static Filter Measurement
To ensure optimum feedback suppression be sure to perform the measurements under the same conditions that will prevail during actual operation (microphone and speaker positions, etc.).
Set the OUTPUT channel 1 through 4 level controls to 3 oclock. Set the level control of the MONO INPUT to which the microphone that is to be used for measurement is connected to 3 oclock. Set up the microphone at least 5 meters away from the speakers. Adjust the output level of the power amplier. While speaking or singing into the microphone gradually raise the output level of the power amplier to the level that will be used in actual operation. Also clap your hands near the microphone to make sure that feedback does not occur.

Music Override

When a signal is applied to the specified STEREO INPUT channel all other STEREO INPUT channels assigned to the same output are automatically faded out and muted. When input to the specified STEREO INPUT channel ceases the level of the other muted channels fades in and returns to normal. The initial default setting is OFF for all channels. The time it takes to fade-in to normal level can be programmed as required.
Set the level control of the MONO INPUT channel to which the microphone that is to be used for measurement is connected to 0. Make sure the area being measured is silent.
If Music Override is ON for more than one channel, the lowest-numbered channel takes priority. Parameter Release Time Range 0.0 6.0sec Initial value 4.0sec

Output Channels

OUTPUT EQ
The parameters of the independent 6-band parametric equalizers provided for OUTPUT channels 1 through 4 can be adjusted and displayed. The following EQ types can be specified for each band.
Type Parameter F PEQ (Peaking EQ) G Q F HPF (High Pass Filter) Slope Q F LPF (Low Pass Filter) Slope Q L. Shelf (Low Shelving EQ) F G F G Range 40Hz 18kHz -15dB +15dB 0.5 12.0 40Hz 18kHz 12dB/oct (Fixed) 0.7 (Fixed) 40Hz 18kHz 12dB/oct (Fixed) 0.7 (Fixed) 40Hz 18kHz -15dB +15dB 40Hz 18kHz -15dB +15dB

BALANCE

Adjusts the A/B level balance for OUTPUT channels 1 and 2.
Parameter BALANCE Range 0dB 20.1dB Initial value 0dB
Output Format (STEREO/MONO)
Specifies whether OUTPUT channels 1 and 2 deliver a STEREO or MONO output signal. When [STEREO] is selected the left channel signal is delivered via the A connector and the rightchannel signal is delivered via the B connector. The initial default setting is [STEREO].

Others

Wrong matrix settings.

Level settings too low. Sound levels dont change when the level knobs are operated.
The LOCK function may be engaged. The LOCK function may be engaged.
Pressing a MEMORY button results in no change to the settings.
No settings have been saved in memory. The appropriate memory-tobutton assignment has not been made. A memory is not assigned to the GPI input. The IMX644 is operating in IMX644 Manager mode. The IMX644 is operating in normal mode.
Memory cannot be recalled via the GPI interface. The IMX644 cannot be operated from an external controller (AMX/Crestron). The IMX644 cannot be operated from the IMX644 Manager application.

Memory Initialization

The following procedure initializes the IMX644 memory.
All data stored in memory will be erased when the memory is initialized. Perform the following procedure with caution.
Turn the IMX644 power OFF. Turn the power back ON while simultaneously holding the MEMORY [A] and [D] buttons. Initialization will take about one second. When initialization is complete the odd-numbered matrix input channel indicators will light.
To recall the initial memory data press a MEMORY button for longer than two seconds.
Initialization erases the password required to connect the IMX644 Manager application to the IMX644 unit. After initialization it will be necessary to set a new password to bring the IMX644 online.

IMX644 Status List

The chart below shows the panel and memory recall operations that are effective with various combinations of modes, panel LOCK settings, and IMX644 Manager LOCK/LINK settings, and whether the panel or memorized level settings are applied when a memory is recalled.

IMX644 Settings

Individual Channel Settings (IMX644 Manager) [LOCK] button ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF [LINK] button ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF
Operations that Affect Actual Level IMX644 Manager Control Invalid Effective Invalid Effective
Operations that Recall Memories
[LOCK] indicator unlit unlit unlit unlit Ofine lit IMX644 Manager Mode lit lit lit unlit unlit Online* unlit unlit unlit unlit unlit unlit Normal Mode lit lit lit lit
Level Knobs Effective Effective Effective Effective Invalid Invalid Effective Effective Effective Invalid Effective Invalid Effective Effective Effective Effective Invalid Invalid Effective Effective

External Controller

MEMORY buttons

IMX644 Manager Control

External Controller
Level Setting Level Knob Setting Memory Setting
Effective Invalid Effective Effective Effective Effective Effective Effective Invalid Invalid Invalid Effective Effective

Effective

Level Knob Setting Memory Setting Memory Setting Memory Setting
Level Knob Setting Memory Setting Level Knob Setting Memory Setting
Effective Level Knob Setting Memory Setting Memory Setting Memory Setting
Effective Level Knob Setting Memory Setting
When the IMX644 is online in the IMX644 Manager mode, LOCK is temporarily disengaged and the panel [LOCK] indicator will go out. Do not operate the panel [LOCK] switch in this condition.
Remote Control Protocol Specications
The commands that can be transferred between the IMX644 and a remote controller are as follows. <Command> <Option 1> <Option 2> <Option n> <Line Feed> A line feed (LF = 0x0A) is necessary at then end of every command line. At least one character space is required between the command name and rst option, and between options.
Communication Specications
Baud Rate : 38400 bps Data : 8bit Parity : none Stop Bit : 1bit Flow Control : none

Memory Recall

Communication Direction External Controller External Controller External Controller External Controller External Controller External Controller Command
Individual Channel Level Control
Communication Direction External Controller External Controller External Controller Command
IMX644 IMX644 IMX644 IMX644 IMX644 IMX644
RSC 0 m RSC OK SCN 0 m VOL x VOL x. VOL x

IMX644 IMX644 IMX644

SVL 0 c x SVL OK VOL 0 c x
m: memory number (116) c: channel number (013)
MONO 1 MONO 2 MONO 3 MONO 4 MONO 5 MONO 6 STEREO 1 STEREO 2 STEREO 3 STEREO 4 OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4

103 102

x: level value (0127)
- - - -111.4 -102.4 -94.4 -88.4 -83.4 -78.4 -74.4 -70.4 -66.4 -63.8 -60.6 -57.6 -55.1 -52.9 -50.9 -49.1 -47.5 -46.0 -44.5 -43.1 -41.7 -40.4 -39.76 -37.9 -36.7 -35.6 -34.5 -33.6 -32.7 -31.8 -31.0 -30.2 -29.4 -28.7 -28.0 -27.3 -26.7 -26.1 -25.5 -24.9 -24.4 -23.9 -23.4 -22.9 -22.4 -22.0 -21.6 -21.2 -20.50 -20.4 -20.0 -19.6 -19.2 -18.8 -18.4 -18.0 -17.6 -17.2 -16.8 -16.4 -16.0 -15.6 -15.2 -14.8 -14.4 -14.0 -13.6 -13.2 -12.8 -12.4 -12.0 -11.6 -11.2 -10.8 -10.24 -10.0 -9.6 -9.2 -8.8 -8.4 -8.0 -7.6 -7.2 -6.8 -6.4 -6.0 -5.6 -5.2 -4.8 -4.4 -4.0 -3.6 -3.2 -2.8 -2.4 -2.0 -1.6 -1.2 -0.8 -0.4 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.7 4.2 4.7 5.2 5.8 6.5 7.3 8.1 9.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0

General Specications

Signal Delay Dimensions (W x H x D) Net Weight Power Requirements Power Consumption Heat Dissipation Temperature range Included Accessories AC Power Cord Length 2.5ms (MONO INPUT [1-6] to OUTPUT[1-4]) 480 x 88 x 364.5 mm 5.5kg U.S/Canada: 120V, 60Hz Korea: 220V, 60Hz China: 220V, 50Hz Other: 110V-240V, 50/60Hz 21W 18.06 kcal/h Operating: 0 to +40C Storage: -20 to +60C Owners Manual, AC Power Cord, Rubber feet x 4, 3-pin Euroblock plug x cm Conditions word clock : int 48kHz Min. 39.69 Typ. 48 Max. 50.88 Unit kHz kHz

Electrical Characteristics
Output impedance of signal generator : 150 ohms

Frequency Response

20Hz-20kHz, reference to the nominal output level @1kHz Input MONO INPUT [1-6] STEREO INPUT [1L/R-4L/R] STEREO INPUT [1L/R-4L/R] OPTICAL IN OPTICAL IN Output OUTPUT [1-4] OUTPUT [1-4] REC OUT [L, R] OUTPUT [1-4] REC OUT [L, R] RL 10K 10K 10K 10K 10K Conditions Min. -1.5 -1 -1 -1 -1 Typ. 0.0 0.0 0.0 0.0 0.0 Max. 0.5 0.5 0.5 0.5 0.5 Unit dB dB dB dB dB
Total Harmonic Distortion
@1kHz Input MONO INPUT [1-6] MONO INPUT [1-6] STEREO INPUT [1L/R-4L/R] STEREO INPUT [1L/R-4L/R] Output OUTPUT [1-4] OUTPUT [1-4] OUTPUT [1-4] REC OUT [L, R] RL 10K 10K 10K 10K Conditions +4dBu@1kHz, GAIN: MAX, PAD: OFF +4dBu@1kHz, GAIN: MIN, PAD: ON +4dBu@1kHz -4dBV@1kHz Min. Typ. Max. 0.1 0.08 0.1 0.1 Unit % % % %
* Total Harmonic Distortion are measured with a 22kHz low pass lter
EIN (EIN=Equivalent Input Noise)
Input MONO INPUT [1-6] * EIN are measured with a IHF-A lter Output OUTPUT [1-4] RL 10K Conditions Rs=150, GAIN:MAX, PAD: OFF OUTPUT level control at nominal level and one INPUT level control at nominal level. Min. Typ. Max. -120 Unit dBu

Hum & Noise

Input Output OUTPUT [1-4] REC OUT [L, R] RL 10K 10K Conditions all level control at minimum level all level control at minimum level Min. Typ. Max. -82 -90 Unit dBu dBV
* Hum & Noise are measured with a DIN AUDIO lter

Crosstalk

@1kHz from/to CH N CH N to/from CH (N-1) or (N+1) CH (N-1) or (N+1) Conditions all adjacent inputs all adjacent outputs Min. Typ. Max. -70 -70 Unit dB dB

Maximum voltage gain

@1kHz Input MONO INPUT [1-6] MONO INPUT [1-6] Output OUTPUT [1-4] REC OUT [L, R] RL 10K 10K Conditions Rs=150, GAIN: MAX, PAD: OFF Rs=150, GAIN: MAX, PAD: OFF Min. Typ. 58 52.2 Max. Unit dB dB

Phantom Voltage

Output MONO INPUT [1-6] Conditions hot & cold: No load Min. 46 Typ. 48 Max. 50 Unit V

Indicator turn on level

Input MONO INPUT [1-6] STEREO INPUT [1L/R-4L/R] Output OUTPUT [3, 4] PEAK SIGNAL PEAK SIGNAL Conditions red LED: green LED: red LED: green LED: ON ON ON ON Min. -4 -42 -4 -48 Typ. -2 -38 -2 -44 Max. 0 --40 Unit dBFs dBFs dBFs dBFs
Level Meter turn on level
Input Output PEAK -8 -14 -20 -32 -44 Conditions red LED: orange LED: orange LED: green LED: green LED: green LED: ON ON ON ON ON ON Min. -4 -10 -16 -22 -34 -48 Typ. -2 -8 -14 -20 -32 -44 Max. 0 -6 -12 -18 -30 -40 Unit dBFs dBFs dBFs dBFs dBFs dBFs

OUTPUT [1,2]

GPI Circuit Example
Example: Controlling the IMX644 from a switch
IMX644 +5V 1K 47K CPU 22K GND INPUT
Example: Lighting the LED of an external device from the IMX644

IMX644

Max.30mA 110 OUTPUT Lit CPU GND Max. +35V
Example: Lighting the LED of an external device while the IMX644 power is ON.
POWER MONITOR HOT POWER MONITOR COLD

Max.30mA

Power ON

Max. +35V

Dimensions

6 18.88 364.5 340

Unit: mm
* Specifications and descriptions in this owners manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specifications at any time without prior notice. Since specifications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.
OUT 1A(L) BUS OUT 1B(R) BUS
OUT 2A(L) BUS OUT 2B(R) BUS OUT 3 BUS OUT 4 BUS

MONO 1 - 6

LEVEL TO OUT2 TO OUT3 TO OUT4 MONO/ STEREO BALANCE LEVEL TO OUT1

PAD 34dB F.B. SUP

SIGNAL

3BAND PEQ

Block Diagram

INPUT GAIN

PEAK LEVEL
6BAND PEQ DELAY DA DELAY DA

OUT1 A(L)

AD Priority Ducker
TO OUT2 MONO/ STEREO BALANCE LEVEL TO OUT3

2BAND PEQ Music Override

TO OUT1

6BAND PEQ

OUT1 B(R)

STEREO 1-3

AD 6BAND PEQ DELAY 6BAND PEQ DELAY DA

2BAND PEQ

PEAK LEVEL TO OUT4

OUT2 A(L) DA

AD Priority Music Override
TO OUT2 TO OUT3 TO OUT4 TO OUT1

2BAND PEQ Ducker

OUT2 B(R)

STEREO 4A

PEAK SIGNAL

6BAND PEQ DELAY DELAY

PEAK LEVEL SIGNAL

STEREO 4B 6BAND PEQ

OUT3 DA

OPTICAL

REC OUT A DA

DIT OPTICAL

REC OUT B
Information for Users on Collection and Disposal of Old Equipment
This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products should not be mixed with general household waste. For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in accordance with your national legislation and the Directives 2002/96/EC. By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling. For more information about collection and recycling of old products, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items. [For business users in the European Union] If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. [Information on Disposal in other Countries outside the European Union] This symbol is only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer and ask for the correct method of disposal.

SINGAPORE

Yamaha Music Asia Pte., Ltd. #03-11 A-Z Building 140 Paya Lebor Road, Singapore 409015 Tel: 747-4374

DENMARK

YS Copenhagen Liaison Ofce Generatorvej 6A, DK-2730 Herlev, Denmark Tel: 49 00
PANAMA AND OTHER LATIN AMERICAN COUNTRIES/ CARIBBEAN COUNTRIES
Yamaha Music Latin America, S.A. Torre Banco General, Piso 7, Urbanizacin Marbella, Calle 47 y Aquilino de la Guardia, Ciudad de Panam, Panam Tel: +507-269-5311

TAIWAN

Yamaha KHS Music Co., Ltd. 3F, #6, Sec.2, Nan Jing E. Rd. Taipei. Taiwan 104, R.O.C. Tel: 02-2511-8688

NORWAY

Norsk lial av Yamaha Scandinavia AB Grini Nringspark 1, N-1345 sters, Norway Tel: 77 70

THAILAND

Siam Music Yamaha Co., Ltd. 4, 6, 15 and 16th oor, Siam Motors Building, 891/1 Rama 1 Road, Wangmai, Pathumwan, Bangkok 10330, Thailand Tel: 02-215-2626

RUSSIA

Yamaha Music (Russia) Ofce 4015, entrance 2, 21/5 Kuznetskii Most street, Moscow, 107996, Russia Tel: 0660

EUROPE

THE UNITED KINGDOM
Yamaha Music U.K. Ltd. Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, England Tel: 01908-366700

OTHER EUROPEAN COUNTRIES

Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: +49-4101-3030

OTHER ASIAN COUNTRIES

Yamaha Corporation, Asia-Pacic Music Marketing Group Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2317

GERMANY

Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: 04101-3030

AFRICA

Yamaha Corporation, Asia-Pacic Music Marketing Group Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2313
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Yamaha Music Central Europe GmbH, Branch Switzerland Seefeldstrasse 94, 8008 Zrich, Switzerland Tel: 01-383 3990

OCEANIA

AUSTRALIA
Yamaha Music Australia Pty. Ltd. Level 1, 99 Queensbridge Street, Southbank, Victoria 3006, Australia Tel: 3-9693-5111

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Yamaha Music Central Europe GmbH, Branch Austria Schleiergasse 20, A-1100 Wien, Austria Tel: 01-60203900

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Yamaha Music Central Europe GmbH, Branch Austria, CEE Department Schleiergasse 20, A-1100 Wien, Austria Tel: 01-602039025

OTHER COUNTRIES

Yamaha Music Gulf FZE LOB 16-513, P.O.Box 17328, Jubel Ali, Dubai, United Arab Emirates Tel: +971-4-881-5868
HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division

Owners Manual

SPECIAL NOTICES
The software and this manual are the exclusive copyrights of Yamaha Corporation. Please read carefully the Software Licensing Agreement at the end of this manual before installing the software. Copying of the software or reproduction of this manual in whole or in part by any means is expressly forbidden without the written consent of the manufacturer. Yamaha makes no representations or warranties with regard to the use of the software and documentation and cannot be held responsible for the results of the use of this manual and the software. Future upgrades of application and system software and any changes in specications and functions will be announced at the following URL. http://www.yamahaproaudio.com/ The illustrations and screens as shown in this manual are for instructional purposes only, and may appear somewhat different from those on your computer. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. The company names and product names in this manual are the trademarks or registered trademarks of their respective companies. Specications and descriptions in this owners manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specications at any time without prior notice. Since specications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.
Precautions when using the [USB] connector When connecting the computer to the [USB] connector, make sure to observe the following points. Failing to do so risks freezing the computer and corrupting or losing the data. If the computer or the device freezes, restart the application software or the computer OS, or turn the power to the device off then on again.

CAUTION

Use an AB type USB cable of less than about 3 meters. Before connecting the computer to the [USB] connector, exit from any power-saving mode of the computer (such as suspend, sleep, standby). Before turning on the power to the device, connect the computer to the [USB] connector. Execute the following before turning the power to the device on/off or plugging/unplugging the USB cable to/from the [USB] connector. - Make sure that data is not being transmitted from the device. - Quit any open application software on the computer. While the computer is connected to the device, you should wait for six seconds or more between these operations: (1) when turning the power of the device off then on again, or (2) when alternately connecting/disconnecting the USB cable.
IMX644 Manager Owners Manual

Table of contents

What is IMX644 Manager?... 3 System requirements... 3 Installation procedure.... 4 Installing IMX644 Manager... 4 Installing the IMX644 USB Driver (Windows 7 users). 5 Installing the IMX644 USB Driver (Windows Vista users).. 8 Installing the IMX644 USB Driver (Windows XP users). 12 Uninstallation procedure... 13 Windows 7 users... 13 Windows Vista users.... 13 Windows XP users... 14 Starting IMX644 Manager... 15 Basic operation in the Parameter Edit screen... 17 BLOCK screen.... 19 INPUT screen.... 23 MATRIX screen.... 24 OUTPUT screen.... 25 OUTPUT EQ screen.... 26 MISC screen.... 28 GPI screen.... 30 MEMORY screen.... 31 Troubleshooting.... 32 SOFTWARE LICENSE AGREEMENT.. 34

What is IMX644 Manager?

IMX644 Manager is application software that lets you make detailed parameter settings for the IMX644. IMX644 Manager has the following functionality. Edit the IMX644s parameters When connected online with the IMX644, you can perform detailed editing of the IMX644s parameters in real-time. Edited settings can be saved as a file. You can use IMX644 Manager to edit offline even when not connected to the IMX644 online. However, some parameters are saved only in the IMX644, so operation when editing offline will differ in some cases from operation when editing online (e.g., channel levels and GPI settings). As far as possible, you should use this software when connected online with the IMX644. Send files of settings to the IMX644 Files of settings that you saved using IMX644 Manager can be sent and loaded into the IMX644.

Installing the IMX644 USB Driver (Windows 7 users) 3
Turn the IMX644 power switch OFF. Turn the IMX644 ON while holding the front-panel MEMORY [D] button, then connect the IMX644 to the computers USB connector. Select [Start] [Control Panel] [Hardware and Sound] [Device Manager]. The Device Manager window will appear.
Right click YAMAHA IMX644 in Other Devices, and select Update Driver Software. The Update Driver Software window will appear.
Click [Browse my computer for driver software].
Click [Browse] and select C:\Program Files (x86)\YAMAHA\IMX644\usbimx644 if youre running the 64bit version of the OS, or C:\Program Files\YAMAHA\IMX644\usbimx644 if youre running the 32-bit version. Click [Next]. The Windows Security window will appear.
Click [Install this driver software anyway]. The installation process will begin.
When the installation process has finished, Windows has successfully updated your driver software will appear.
Click [Close] to close the window, and check that Yamaha IMX644 USB Serial Converter has been added to the Universal Serial Bus controllers item in the Device Manager window.
Right click USB Serial port in Other Devices, and select Update Driver Software. The Update Driver Software window will appear.
10 Repeat steps 5 through 7, above. 11 Windows has successfully updated your driver software will appear.
Click [Close] to close the window, and check that Yamaha IMX644 USB Serial Port (COMn*) has been added to the Ports (COM & LPT) item in the Device Manager window. * The port number n will depend on the device.
12 Turn the IMX644 ON while holding the front-panel MEMORY [D] button.
The IMX644 will start up in IMX644 Manager mode.
13 Launch the IMX644 Manager either by selecting [Start] [All Programs] [YAMAHA IMX644 Manager]
[IMX644 Manager], or by double-clicking the shortcut icon on the desktop. If the installation has been successful the IMX644 Manager [Status] indicator will light green and the device will be online. If the device does not appear online, refer top the Troubleshooting section on page 32.
Installing the IMX644 USB Driver (Windows Vista users) 1 2
Power-off the IMX644. Use a USB cable to connect the IMX644 to your computer. The Found New Hardware screen will appear.
Make the USB connection directly to your computer without going through a USB hub.
Click [Locate and Install driver software (recommended)].

If the User Account Control dialog box appears, click [Allow] or [Continue].
Click [Dont search online]. Click [I dont have the disc. Show me other options.]. Click [Browse my computer for driver software (advanced)].
Click the [Browse] button, and inside the IMX644 folder, select the folder that contains the driver (C:\Program Files\YAMAHA\IMX644\Usbimx644 by default), and click [Next].
If a Windows security dialog box appears, click [Install this driver software anyway].
When the installation is completed, a message indicating this will appear.
Click the [Close] button to close the screen.
The Found New Hardware window will appear.
Click [Dont search online].
Depending on your computers Windows Update driver settings, the above window may not appear. If the window does not appear, go on to the next step.
10 Click [I dont have the disk. Show me other options.]. 11 Click [Browse my computer for driver software (advanced)].
If the Windows Security dialog box appears, click [Install this driver software anyway].
12 When the installation is completed, a message indicating this will appear.
13 While holding down the IMX644s MEMORY [D] button, power-on the IMX644.
14 Start up IMX644 Manager, either by choosing [Start] [All programs] [YAMAHA IMX644 Manager]
[IMX644 Manager], or by double-clicking the shortcut icon on the desktop. If the software was installed successfully, IMX644 Managers [Status] indicator will light green, and it will be online. If IMX644 Manager does not go online, refer to page 32 of Troubleshooting.
Installing the IMX644 USB Driver (Windows XP users) 1 2
Power-off the IMX644. Use a USB cable to connect the IMX644 to your computer. The Found New Hardware Wizard screen will appear.
Make the USB connection directly to your computer without going through a USB hub. A dialog box may ask you whether you want to connect to Windows Update. If so, select the option button at the left of No, not this time, and click [Next].
Select the option button located at the left of Install from a list or a specified location (advanced), and click [Next].
Select the option button located at the left of Search for the best driver in these locations, select Include this location in the search. Then click the [Browse] button, and inside the IMX644 folder, select the folder that contains the driver (C:\Program Files\YAMAHA\IMX644\Usbimx644 by default), and click [Next].

Starting IMX644 Manager

In order for the IMX644 and your computer to be connected online, you must connect the IMX644 to your computer and then power-on the IMX644 while holding down its MEMORY [D] button (IMX644 Manager mode). Use either a USB cable or an RS-232C cable to make this connection. If youre using an RS-232C cable, use a female-female cross cable. If both a USB cable and an RS-232C cable are connected, the USB connection will take priority. Do not switch between USB and RS-232C connections after starting-up the IMX644. If you need to switch connections, you must power-off the IMX644 and then restart the IMX644 while holding down its MEMORY [D] button.
To start up IMX644 Manager, choose [Start] [All Programs] [Yamaha IMX644 Manager] [IMX644 Manager], or double-click the shortcut icon on the desktop.
When IMX644 Manager starts up, the starting screen will appear first.
1 [Parameter Edit] button
This button opens the Parameter Edit screen, allowing you to edit parameters or to save parameter settings as a file. If you click this when the [Status] indicator is Online, the Password dialog box will appear. Enter the previously assigned password for the IMX644, and click the [OK] button. The IMX644s settings will be loaded into IMX644 Manager, and the Parameter Edit screen (BLOCK screen) will appear. If you click this when the [Status] indicator is Offline, the Confirmation dialog box will appear. If you want to edit parameters offline, click [OK].
If no password has been assigned to the IMX644 (i.e. with the factory settings or if the IMX644 has been initialized), the Register Password dialog box will appear. Enter the password (between one and eight characters long) that you want to assign to the IMX644, enter the same password in the Confirm field, and click the [OK] button. If you dont know the password or if you want to change the password, youll need to initialize the IMX644s internal memory. Initialization will return the settings to their factory-set state, so be sure to save any important settings as a file before you proceed. The IMX644 will be initialized if you turn on the power while holding down its MEMORY [A] and [D] buttons.

2 [File Transfer] button

This button loads a file of settings and sends it to the IMX644. If you click this when the [Status] indicator is Online, the Password dialog box will appear. Enter the assigned password for the IMX644 and click the [OK] button; the File Load dialog box will appear. Select the parameter file (extension.i6x) that you want to send to the connected IMX644, and click the [Open] button. The Transferring dialog box will appear, and the settings will be sent.

Range When PAD is on (LINE) When PAD is off (MIC) 4.0dB -20.0dB -30.0dB -54.0dB Default -1.0dB -35.0dB
3 Input SIGNAL/PEAK indicator
These indicators light green when an input signal is detected at the corresponding channel. The indicators also light red to indicate excessive input level. If excessive input level is indicated, either reduce the output level of the connected source, or reduce the input level via the appropriate rear-panel [PAD] (34 dB) switch or by using INPUT GAIN.

4 [EQ] button

This button opens the INPUT EQ dialog box, where you can edit the EQ (equalizer) that is provided on each input channel. Click the [CLOSE] button to close the dialog box. INPUT EQ dialog box The editable parameters differ between MONO INPUT channels and STEREO INPUT channels. Level adjustment knob This adjusts the gain of each band. Right-click and hold down the mouse button to increase the value; left-click and hold down the mouse button to decrease the value. Double-click to reset the value to 0 dB.
Press (hold) the left button
Press (hold) the right button
Parameter indication (G/F/Q) These indicate the gain (G), center/cutoff frequency (F), and Q. Click the [ ]/[ ] buttons, or make changes in the dialog box that appears when you click the value. The parameters available for each channel are listed below. MONO INPUT channel
Parameter HIGH (shelving) G F G MID (peaking) F Q LOW (shelving) G F Range -15dB +15dB 2kHz 18kHz -15dB +15dB 40Hz 18kHz 0.5 12.0 -15dB +15dB 40Hz 2kHz Default 0dB 10kHz 0dB 2kHz 0.7 0dB 100Hz

STEREO INPUT channel

Parameter HIGH (shelving) LOW (shelving) G F G F Range -15dB +15dB 2kHz 18kHz -15dB +15dB 40Hz 2kHz Default 0dB 10kHz 0dB 100Hz
[EQ ON]/[EQ OFF] buttons These turn the EQ on/off. [COPY to] button This copies the parameters of the currently-edited EQ to the EQ of another input channel. The EQ COPY dialog box will appear when you click this button. Use the option buttons to select the input channel to which you want to copy the EQ settings, and click the [OK] button.

5 [LEVEL] button

This opens the LEVEL dialog box, allowing you to adjust the volume of the input/output channels. LEVEL dialog box [LINK] button This specifies whether IMX644s front panel volume knob values will be linked with the on-screen fader values. If this is on (green), the on-screen fader values will change in tandem with the IMX644s volume knob settings. When this is on, you will only be able to operate the IMX644s volume knobs; the onscreen faders will not be operable. When you save settings to memory, the IMX644s volume knob values will be saved. If this is off (gray), IMX644 Managers fader values will not be linked with the IMX644s volume knob settings. When this is off, the volume will be as specified by the on-screen faders; the volume will not match the settings of the IMX644s volume knobs. When you save settings to memory, the on-screen fader values will be saved. The [LINK] button will return to the On (green) state when you close IMX644 Manager or return to the starting screen. If the volumes would increase when you switch this from off to on, a confirmation screen will appear. Fader This adjusts the volume. If the [LINK] button is on (green), this will be inoperable.

Parameter Fader Level Range - +10dB Default
Markers The red marker indicates the setting of the IMX644s volume knob; the blue marker indicates the volume value saved in memory. This is unavailable when offline. [LOCK] button If you turn this off (gray), operations of the volume knob for that channel will be effective if the IMX644 is locked by its LOCK switch. If this is on (red), volume knob operations for that channel will be ignored.

6 [MATRIX] button

7 [STEREO/MONO] button
Specifies whether OUTPUT channels 1 and 2 deliver a STEREO or MONO output signal. The initial setting is [STEREO]. When [STEREO] is selected the left (L) signal is output to channel A and the right (R) signal is output to channel B.

8 [EQ+FILTER] button

9 [DELAY] button
Opens the DELAY dialog box, allowing you to specify the delay time for each OUTPUT channel. Use these settings when you need to apply a delay to the main speaker outputs so that the sound from the sub-speakers will not be heard with a timing offset. Click the [CLOSE] button to close the dialog box. DELAY dialog box Time indication This specifies the delay time. This is linked with the distance indication below. Click the [ ]/[ ] buttons to edit the value. Distance indication This indicates the specified delay time as a distance (meters) at the speed of sound (343.59 m/s). Click the [ ]/[ ] buttons to edit the value.
Parameter Time Indication Distance Indication Range 0 300msec 0 103.08m Default 0msec 0m

) [BAL] button

This opens the BALANCE dialog box, allowing you to specify the volume balance between outputs A/B (L/R) of OUTPUT channels 1 and 2. Click the [CLOSE] button to close the dialog box. BALANCE dialog box Here you can adjust the volume balance between outputs A/B (L/R).
Parameter Balance Range 0dB -20.1dB Default 0dB
Right-click the [BALANCE] knob and continue holding down the mouse button to decrease the A (L) volume; left-click and hold down the mouse button to decrease the B (R) volume. Doubleclick to reset the value to center.
! Output level meter, output SIGNAL/PEAK indicator

Output level meters Displays the levels of the signal being output via OUTPUT channels 1 and 2. Output SIGNAL/PEAK indicators The SIGNAL/PEAK indicators show the output signal for OUTPUT channels 3 and 4. If the top segment (PEAK) of the level meter lights red, or if the PEAK indicator lights red, the output signal level is at the allowable maximum. Lower the input volume or the output volume.

@ OUT 14, REC OUT

These indicate the output channels and their names. Click a name to access the Output Port Name dialog box, where you can edit the name of the channel.

# MEMORY [A][D] buttons

When you click a button [A][D], the memory assigned to that button will be recalled and the parameter settings will be switched accordingly. This is the same function as the IMX644s MEMORY [A][D] buttons. Use the MISC screen (page 28) to assign a memory to each button. Memories A through D all contain the same settings when the unit is shipped from the factory.

INPUT screen

Here you can edit the input channel parameters.
When editing online, this will indicate MIC if the rear panel PAD (34 dB) switch is off, or LINE if the switch is on. When editing offline, this will indicate MIC by default.

2 +48V indicator

When editing online, this will be dark if the rear panel +48V switch is off, or lit red if the switch is on. When editing offline this will be dark.

3 INPUT GAIN

This edits the input gain value. Click the [-]/[+] buttons, or make changes in the dialog box that appears when you click the value. The range will depend on the setting of the PAD (34 dB) switch.
4 -2 dBFS (PEAK), -38 dBFS indicators
If an input signal of -38 dBFS or higher is detected, the [-38 dBFS] indicator will light green. If the [-2 dBFS] (PEAK) indicator lights red, the input signal has reached the maximum allowable level. If excessive input level is indicated, either reduce the output level of the connected source, or reduce the input level via the appropriate rear-panel [PAD] (34 dB) switch or by using INPUT GAIN.
dBFS stands for decibels full scale, and indicates the digital audio level. 0 dBFS is the maximum level.

5 [EQ] button

This button opens the INPUT EQ dialog box, where you can edit the EQ that is provided on each input channel. This is the same as the BLOCK screens INPUT EQ dialog box; refer to page 20 for details.

6 [F.B. SUP] button

This turns the feedback suppressor on/off (MONO INPUT channels only). The on/off state of this button is linked with the Feedback Suppressor check box in the MISC screen. For more about the Feedback Suppressor, refer to page 29.
7 [PRIORITY]/[OVERRIDE] button
This turns on/off the Priority Ducker function (MONO INPUT channels only) or the Music Override function (STEREO INPUT channels only). The on/off state of this button is linked with the Priority Ducker Key Source Select or Music Override Key Source Select check boxes in the MISC screen. For more about the Priority Ducker function and Music Override function, refer to page 28.

8 [OUT1][OUT4] buttons

Here you can specify the output channels (OUTPUT channels 1- 4) to which the input channel signals are sent. These settings are linked with the matrix settings in the MATRIX screen.
9 [LINK] button, fader, marker, [LOCK] button
Here you can adjust the volume of the input channel. These parameters are the same as in the BLOCK screens LEVEL dialog box; refer to page 21 for details.

MATRIX screen

Here you can specify the output channels to which the input channel signals are sent. The send levels from MONO INPUT channels to the OUTPUT channels can also be adjusted here.
From the IMX644s panel, you can temporarily turn on a send from a specific input channel to an OUTPUT channel. However, output assignments made in this way are only temporary and will not be saved to memory. For details, refer to the IMX644 Owners Manual.

1 Matrix setting buttons

These turn on/off the send from the input channel to each OUTPUT channel. When a button is on (green), the signal will be sent from the corresponding input channel to the OUTPUT channel. When a button is off (gray), the signal will not be output. Signals can be sent to the REC OUT channel only from OUTPUT channels. The default settings are: sends to all OUTPUT channels are on, with only OUTPUT channel 1 assigned to the REC OUT channel.

2 Send level indicator

This sets the level of the signal sent from the MONO INPUT channel to the OUTPUT channel in a range of -Inf (-)0dB. Click the [ ]/[ ] buttons to edit the value.
Parameter Send Level Range -Inf 0.0dB Default 0.0dB

OUTPUT screen

Here you can edit parameters other than EQ for output channels 14.
1 Output level meter/indicator
Output level meters Shows level meters for the output signals of OUTPUT channels 1 and 2. Output indicators Shows [-2 dBFS]/[-44 dBFS] indicators for the output signals of OUTPUT channels 3 and 4. The [-44 dBFS] indicator will light green when an output signal is detected at the corresponding channel. If the [-2 dBFS] (PEAK) indicator lights red, the output signal has reached the maximum allowable level. Lower the input volume or the output volume.

6 DELAY

This sets the delay time of each OUTPUT channel. These parameters are the same as in the BLOCK screens DELAY dialog box; refer to page 21 for details.

7 EQ response curve

This indicates the frequency response of the current EQ settings. This is an approximate curve for your reference. The markers ( ) indicate the parameter values for each band. The color of the markers corresponds to the band number (16) shown below. By dragging a marker (left-click and move the mouse while holding down the button) you can specify the EQ response quickly and visually. Use the parameter indications below to make fine adjustments to the values.

8 Type

The following EQ types can be specified for each band.
Type P.EQ (Peaking EQ) Parameter F G Q F HPF (High Pass Filter) Slope Q F LPF (Low Pass Filter) Slope Q L.Shelf (Low Shelving EQ) H.Shelf (High Shelving EQ) F G F G Range 40Hz 18kHz -15dB +15dB 0.5 12.0 40Hz 18kHz 12dB/oct (Fixed) 0.7 (Fixed) 40Hz 18kHz 12dB/oct (Fixed) 0.7 (Fixed) 40Hz 18kHz -15dB +15dB 40Hz 18kHz -15dB +15dB
The default setting is [P.EQ] with the following parameter values.
Parameter Q G F1 F2 F3 F4 F5 F6 Default 0.7 (common to all bands) 0.0dB(common to all bands) 40Hz 100Hz 500Hz 2kHz 5kHz 10kHz
9 Parameter indication (F/G/Q)
These indicate the center/cutoff frequency (F), gain (G), and Q. To edit the values, click the [ ]/[ ] buttons or use the mouse to drag the markers ( ) in the EQ response curve display.

MISC screen

Here you can edit settings for functions such as Priority Ducker, Music Override, and Feedback Suppressor.
Priority Ducker Key Source Select When a signal is applied to the specified MONO INPUT channel, the level of all STEREO INPUT signals assigned to the same output are reduced to allow announcements made via the MONO INPUT channel to stand out clearly from background music or other program material, for example. When input to the specified MONO INPUT channel ceases, the level of the other ducked channels returns to normal.
1 [MONO 1][MONO 6] check boxes
These turn on/off the Priority Ducker function for each MONO INPUT channel. These check boxes are linked with the [PRIORITY] buttons of the INPUT screen. The default setting is OFF for all channels.
If this is turned on for more than one MONO INPUT channel, an audio signal being input to any MONO INPUT channel for which this setting is turned on will reduce the volume from the STEREO INPUT channel that is being input to the same output channel.

2 Mute Level

This specifies the amount of attenuation applied to the STEREO INPUT channel by the Priority Ducker function.
Parameter Mute Level Range -30.2dB 0dB Default -20dB

3 Release Time

This specifies the time from when the audio signal disappears from the MONO INPUT channel until the audio signal of the STEREO INPUT channel returns to its original volume. If the audio signal of the STEREO INPUT channel prematurely returns to its original volume during breathing spaces or between words, increase the Release Time so that the STEREO INPUT audio signal does not come back inappropriately.

The GPI connector is a D-sub 25-pin connector for GPI (General Purpose Interface), used to input and output control signals. The IMX644 has eight input ports and eight output ports, plus a dedicated output that indicates the units power-on/off status. For details on the GPI connectors specifications and example circuits, refer to the IMX644 Owners manual.
GPI Input Terminal Applying an appropriate input to one of the rear-panel GPI input ports recalls the assigned memory. For each input port, you can specify the memory that will be recalled. By default, memories 18 are assigned to input ports 18. If you want to change these assignments, click the Memory field of each input port and select the desired memory from the list that appears. Select [NONE] if you dont want to make an assignment. GPI Output Terminal Here you can specify the open/closed status of each output port for each memory. This allows you to change the open/closed status of the GPI connectors output ports by recalling a memory. By default, all buttons are off (gray); i.e., open. If you click a button to turn it on (green), that output port will change to the closed state. Click a name field to access the Name of GPI OUT dialog box, where you can edit the name of the output port.

MEMORY screen

Here you can save your edited parameter settings in sixteen different memories, or recall previously-saved settings.

1 Memory list

This area shows the names of the sixteen memories. If you want to edit the name of a memory, recall that memory; then click the Memory field in the header area, edit the name, and re-save the memory.

2 Option buttons

These buttons select the memory to which Store or Recall operations will apply.

3 [Store] button

This stores the edited parameter settings into the specified memory. Use the option buttons to select the memory number to which you want to store the edited settings, and click the [Store] button; a confirmation dialog box will appear. Click [OK] to store the memory.

4 [Recall] button

This recalls the parameters stored in the memory. Use the option buttons to select the number of the memory that you want to recall, and click the [Recall] button. A confirmation dialog box will appear; click [OK] to recall the memory. When the memory has been recalled, the BLOCK screen will appear.
You can also assign memories to the front panel MEMORY [A][D] buttons and use them to recall memories. In order to do this, youll need to make memory assignments in the MEMORY ASSIGN field of the MISC screen (page 30). If you want to recall memories while connected online with the IMX644, use the [A][D] buttons in IMX644 Manager; not the IMX644s MEMORY [A][D] buttons.

*3 Accessing the screen DPI setting Windows 7 users Choose [Start] [Control Panel] [Appearance and Personalization] [Personalization]. In the left side of the window, click [Adjust font size (DPI)] to access the screen DPI setting dialog box. Windows Vista users Choose [Start] ([Settings]) [Control Panel] [Appearance and Personalization] [Personalization]. In the left side of the window, click [Adjust font size (DPI)] to access the screen DPI setting dialog box. Windows XP users Choose [Start] ([Settings]) [Control Panel] [Screen] to access the Display Properties dialog box. In the [Settings] tab, choose [Advanced] [General] to access the DPI setting.

ATTENTION

SOFTWARE LICENSE AGREEMENT
PLEASE READ THIS SOFTWARE LICENSE AGREEMENT (AGREEMENT) CAREFULLY BEFORE USING THIS SOFTWARE. YOU ARE ONLY PERMITTED TO USE THIS SOFTWARE PURSUANT TO THE TERMS AND CONDITIONS OF THIS AGREEMENT. THIS AGREEMENT IS BETWEEN YOU (AS AN INDIVIDUAL OR LEGAL ENTITY) AND YAMAHA CORPORATION (YAMAHA). BY DOWNLOADING, INSTALLING, COPYING, OR OTHERWISE USING THIS SOFTWARE YOU ARE AGREEING TO BE BOUND BY THE TERMS OF THIS LICENSE. IF YOU DO NOT AGREE WITH THE TERMS, DO NOT DOWNLOAD, INSTALL, COPY, OR OTHERWISE USE THIS SOFTWARE. IF YOU HAVE DOWNLOADED OR INSTALLED THE SOFTWARE AND DO NOT AGREE TO THE TERMS, PROMPTLY DELETE THE SOFTWARE.
1. GRANT OF LICENSE AND COPYRIGHT
Yamaha hereby grants you the right to use the software program(s) and data (SOFTWARE) accompanying this Agreement. The term SOFTWARE shall encompass any updates to the accompanying software and data. The SOFTWARE is owned by Yamaha and/or Yamahas licensor(s), and is protected by relevant copyright laws and all applicable treaty provisions. While you are entitled to claim ownership of the data created with the use of SOFTWARE, the SOFTWARE will continue to be protected under relevant copyrights. You may use the SOFTWARE on your computer(s). You may make one or reasonable copies of the SOFTWARE in machine-readable form for backup purposes only, if the SOFTWARE is on media where such backup copy is permitted. On the backup copy, you must reproduce Yamahas copyright notice and any other proprietary legends that were on the original copy of the SOFTWARE. You may permanently transfer to a third party all your rights in the SOFTWARE, provided that you do not retain any copies and the recipient reads and agrees to the terms of this Agreement.

5. LIMITATION OF LIABILITY
YAMAHAS ENTIRE OBLIGATION HEREUNDER SHALL BE TO PERMIT USE OF THE SOFTWARE UNDER THE TERMS HEREOF. IN NO EVENT SHALL YAMAHA BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY DAMAGES, INCLUDING, WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, EXPENSES, LOST PROFITS, LOST DATA OR OTHER DAMAGES ARISING OUT OF THE USE, MISUSE OR INABILITY TO USE THE SOFTWARE, EVEN IF YAMAHA OR AN AUTHORIZED DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. In no event shall Yamahas total liability to you for all damages, losses and causes of action (whether in contract, tort or otherwise) exceed the amount paid for the SOFTWARE.

6. THIRD PARTY SOFTWARE

Third party software and data (THIRD PARTY SOFTWARE) may be attached to the SOFTWARE. If, in the written materials or the electronic data accompanying the Software, Yamaha identies any software and data as THIRD PARTY SOFTWARE, you acknowledge and agree that you must abide by the provisions of any Agreement provided with the THIRD PARTY SOFTWARE and that the party providing the THIRD PARTY SOFTWARE is responsible for any warranty or liability related to or arising from the THIRD PARTY SOFTWARE. Yamaha is not responsible in any way for the THIRD PARTY SOFTWARE or your use thereof. Yamaha provides no express warranties as to the THIRD PARTY SOFTWARE. IN ADDITION, YAMAHA EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, as to the THIRD PARTY SOFTWARE. Yamaha shall not provide you with any service or maintenance as to the THIRD PARTY SOFTWARE. Yamaha is not liable to you or any other person for any damages, including, without limitation, any direct, indirect, incidental or consequential damages, expenses, lost prots, lost data or other damages arising out of the use, misuse or inability to use the THIRD PARTY SOFTWARE.

7. GENERAL

This Agreement shall be interpreted according to and governed by Japanese law without reference to principles of conict of laws. Any dispute or procedure shall be heard before the Tokyo District Court in Japan. If for any reason a court of competent jurisdiction nds any portion of this Agreement to be unenforceable, the remainder of this Agreement shall continue in full force and effect.

8. COMPLETE AGREEMENT

This Agreement constitutes the entire agreement between the parties with respect to use of the SOFTWARE and any accompanying written materials and supersedes all prior or contemporaneous understandings or agreements, written or oral, regarding the subject matter of this Agreement. No amendment or revision of this Agreement will be binding unless in writing and signed by a fully authorized representative of Yamaha.
U.R.G., Pro Audio Division 2009 Yamaha Corporation 008AP B0