OWNERS MANUAL

Thank you, and congratulations on your choice of the Roland Keyboard Amplifier KC-550/ KC-350. These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, Owners manual should be read in its entirety. The manual should be saved and kept on hand as a convenient reference. Before using this unit, carefully read the sections entitled: IMPORTANT SAFETY INSTRUCTIONS (p. 2) USING THE UNIT SAFELY (p. 3p. 4) IMPORTANT NOTES (p. 5)

Main Features

This monitor-speaker amplifier is designed to provide high-quality sound for a variety of sources, including digital keyboards and sound modules. The amps two-way speaker systems consist of a 38 cm (15-inch) speaker (in the KC-550; the KC-350 includes a 30 cm [12-inch] speaker) and horn/tweeter. These amps feature high-power output as well, with the KC-550 outputting 180 watts and the KC-watts. The input section features a four-channel stereo mixer. CH 1 is provided with an XLR connector in addition to supporting mic input. CH 4 includes a select switch that lets you choose the destination for output. This feature rounds out the monitor functions. The KC-550/KC-350 is equipped with a three-band equalizer. Moreover, when combined with the SHAPE switch, even more tonal variations are possible. Features a SUBWOOFER OUT jack, allowing connection of a powered subwoofer for playback of even more impressive bass. Provided with an RCA phono type AUX IN jack, making it easy to connect devices such as CD and MD players. Equipped with line outs, making it convenient to connect to an external mixer or recorder. Equipped with STEREO LINK function. Stereo playback is enabled simply by connecting two KC-550 or KC-350 units with a single audio cable (phone type). Copyright 2003 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.
IMPORTANT SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
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 lightning flash 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 sufficient 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.
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.
IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS
WARNING - When using electric products, basic precautions should always be followed, including the following: 1. 2. 3. 4. 5. 6. 7. 8. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any of the 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 amplifiers) 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. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Never use with a cart, stand, tripod, bracket, or table except as specified 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. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified 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.

For the U.K. 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 coloured GREEN or GREEN-AND-YELLOW. 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.

USING THE UNIT SAFELY

Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly. Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly. * Material damage refers other adverse effects respect to the home furnishings, as well animals or pets. to damage or caused with and all its to domestic
The symbol alerts the user to important instructions or warnings.The specific meaning of the symbol is determined by the design contained within the triangle. In the case of the symbol at left, it is used for general cautions, warnings, or alerts to danger. The symbol alerts the user to items that must never be carried out (are forbidden). The specific thing that must not be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the unit must never be disassembled. The symbol alerts the user to things that must be carried out. The specific thing that must be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the powercord plug must be unplugged from the outlet.
Before using this unit, make sure to read the instructions below, and the Owners Manual....
Make sure you always have the unit placed so it is level and sure to remain stable. Never place it on stands that could wobble, or on inclined surfaces....
Do not open or perform any internal modifications on the unit....
Do not attempt to repair the unit, or replace parts within it (except when this manual provides specific instructions directing you to do so). Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page....
The unit should be connected to a power supply only of the type described in the operating instructions, or as marked on the unit....
Do not excessively twist or bend the power cord, nor place heavy objects on it. Doing so can damage the cord, producing severed elements and short circuits. Damaged cords are fire and shock hazards!....

Never use or store the unit in places that are: Subject to temperature extremes (e.g., direct sunlight in an enclosed vehicle, near a heating duct, on top of heat-generating equipment); or are Damp (e.g., baths, washrooms, on wet floors); or are Humid; or are Exposed to rain; or are Dusty; or are Subject to high levels of vibration....
This unit, either alone or in combination with an amplifier and headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level, or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should immediately stop using the unit, and consult an audiologist....
Do not allow any objects (e.g., flammable material, coins, pins); or liquids of any kind (water, soft drinks, etc.) to penetrate the unit.
Immediately turn the power off, remove the power cord from the outlet, and request servicing by your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page when: The power-supply cord, or the plug has been damaged; or If smoke or unusual odor occurs Objects have fallen into, or liquid has been spilled onto the unit; or The unit has been exposed to rain (or otherwise has become wet); or The unit does not appear to operate normally or exhibits a marked change in performance....
The unit should be located so that its location or position does not interfere with its proper ventilation....
Always grasp only the plug on the power-supply cord when plugging into, or unplugging from an outlet....
Any accumulation of dust between the power plug and the power outlet can result in poor insulation and lead to fire. Periodically wipe away such dust with a dry cloth. Also, disconnect the power plug from the power outlet whenever the unit is to remain unused for an extended period of time....
In households with small children, an adult should provide supervision until the child is capable of following all the rules essential for the safe operation of the unit....
Try to prevent cords and cables from becoming entangled. Also, all cords and cables should be placed so they are out of the reach of children....

Protect the unit from strong impact. (Do not drop it!)....
Do not force the units power-supply cord to share an outlet with an unreasonable number of other devices. Be especially careful when using extension cordsthe total power used by all devices you have connected to the extension cords outlet must never exceed the power rating (watts/amperes) for the extension cord. Excessive loads can cause the insulation on the cord to heat up and eventually melt through....
KC-550 If the unit could become a hazard if it moves, all caster wheels should be removed once the unit has been placed at the place of installation, or has been loaded onto a vehicle....
Never climb on top of, nor place heavy objects on the unit....
Never handle the power cord or its plug with wet hands when plugging into, or unplugging from, an outlet....
Before using the unit in a foreign country, consult with your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page....
Before moving the unit, disconnect the power plug from the outlet, and pull out all cords from external devices....
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture and objects filled with liquids, such as vases, should not be placed on this apparatus....
Before cleaning the unit, turn off the power and unplug the power cord from the outlet....
Whenever you suspect the possibility of lightning in your area, pull the plug on the power cord out of the outlet....

IMPORTANT NOTES

In addition to the items listed under IMPORTANT SAFETY INSTRUCTIONS and USING THE UNIT SAFELY on pages 2, 3 and 4, please read and observe the following:

Power Supply

Maintenance
Do not use this unit on the same power circuit with any device that will generate line noise (such as an electric motor or variable lighting system).
Before connecting this unit to other devices, turn off the power to all units. This will help prevent malfunctions and/or damage to speakers or other devices.
For everyday cleaning wipe the unit with a soft, dry cloth or one that has been slightly dampened with water. To remove stubborn dirt, use a cloth impregnated with a mild, non-abrasive detergent. Afterwards, be sure to wipe the unit thoroughly with a soft, dry cloth.
Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or deformation.
Although the LEDs are switched off when the POWER switch is switched off, this does not mean that the unit has been completely disconnected from the source of power. If you need to turn off the power completely, first turn off the POWER switch, then unplug the power cord from the power outlet. For this reason, the outlet into which you choose to connect the power cords plug should be one that is within easy reach.

For routine care of the carpeted surfaces, use a brush with stiff bristles.

Additional Precautions

Use a reasonable amount of care when using the units buttons, sliders, or other controls; and when using its jacks and connectors. Rough handling can lead to malfunctions.

Placement

Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of interference.
When connecting / disconnecting all cables, grasp the connector itselfnever pull on the cable. This way you will avoid causing shorts, or damage to the cables internal elements.
A small amount of heat will radiate from the unit during normal operation.
This device may interfere with radio and television reception. Do not use this device in the vicinity of such receivers.
Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving or initiating a call, or while conversing. Should you experience such problems, you should relocate such wireless devices so they are at a greater distance from this unit, or switch them off.
To avoid disturbing your neighbors, try to keep the units volume at reasonable levels. You may prefer to use headphones, so you do not need to be concerned about those around you (especially when it is late at night).
When you need to transport the unit, package it in the box (including padding) that it came in, if possible. Otherwise, you will need to use equivalent packaging materials.
Do not expose the unit to direct sunlight, place it near devices that radiate heat, leave it inside an enclosed vehicle, or otherwise subject it to temperature extremes. Also, do not allow lighting devices that normally are used while their light source is very close to the unit (such as a piano light), or powerful spotlights to shine upon the same area of the unit for extended periods of time. Excessive heat can deform or discolor the unit.

Use a cable from Roland to make the connection. If using some other make of connection cable, please note the following precautions. Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this unit. The use of such cables can cause the sound level to be extremely low, or impossible to hear. For information on cable specifications, contact the manufacturer of the cable. When transporting and storing the KC-550/KC-350, be sure to secure the AC cord to the cord hook on the rear of the main unit.
When moved from one location to another where the temperature and/or humidity is very different, water droplets (condensation) may form inside the unit. Damage or malfunction may result if you attempt to use the unit in this condition. Therefore, before using the unit, you must allow it to stand for several hours, until the condensation has completely evaporated.
Do not allow rubber, vinyl, or similar materials to remain on the unit for long periods of time. Such objects can discolor or otherwise harmfully affect the finish.
Do not put anything that contains water (e.g., flower vases) on the unit. Also, avoid the use of insecticides, perfumes, alcohol, nail polish, spray cans, etc., near the unit. Swiftly wipe away any liquid that spills on the unit using a dry, soft cloth.
Do not paste stickers, decals, or the like to this instrument. Peeling such matter off the instrument may damage the exterior finish. Do not allow objects to remain on top of the unit while it is in operation.

Panel Descriptions

Control Section

fig.20

1. CHANNEL CONTROL
Stereo 4-channel mixing is offered by the CHANNEL CONTROLs. * When using in Stereo Link configuration, refer to Stereo Link (p. 12).
* The OUTPUT SEL switch is convenient in situations like the following. : Select this position when you wish to listen to guide clicks or a rhythm machine (for example) through headphones, without output to the internal or any external speakers. : This can be a handy function when you want to use the amplifier as a fold back monitor during a live performance. This is effective in preventing the loop noise that may occur at times such as when the CH 4 input and Line Out on the KC-550/KC-350 are both connected to a mixer. : Use CH 4 equally with CH 1 through CH 3.

CH 1, CH 2, CH 3

These adjust the volume levels for CH 1, CH 2 and CH 3. CH 1 accepts the mic input.
This adjusts the volume level for CH 4. CH 4 includes a select switch that lets you choose the destination for output.
OUTPUT SEL (output select) Switch
This switch selects the combination of outputs headphones, speakers, and line outsto which signals input to CH 4 are sent.

PHONES

PHONES VOLUME Knob
This knob adjusts the headphone volume. * The PHONES VOLUME knob affects only the headphone output.
Output is through the headphones and the internal speakers. No signals are output to Line Out.

PHONES Jack

This is for connecting headphones. * The amplifiers speakers work even when headphones are
Output is only through the headphones. No signals are output to the internal speakers and Line Out.
Output is through the headphones, the internal speakers, and Line Out.
connected. * Before plugging in or unplugging headphones, be sure to place the PHONES VOLUME knob at 0. * The MASTER CONTROL (Equalizer, SHAPE switch and VOLUME knob) do not affect the headphone output.

2. MASTER CONTROL

EQUALIZER
The KC-550/KC-350 comes with a three-band equalizer.

LOW Knob

This adjusts the tone of the bass range.

MIDDLE Knob

This adjusts the tone of the middle range.

HIGH Knob

This adjusts the tone of the treble range. * The equalizer (controlled with the LOW, MIDDLE, and HIGH knobs) affects only the output from SUBWOOFER OUT and the speakers.

SHAPE Switch

When switched on, this provides a boost in the upper and lower ranges. It can be conveniently used to improve the sound quality at low volumes, or to give the sound a greater sense of clarity. * The SHAPE switch affects only the output from the speakers.

VOLUME Knob

This adjusts the total volume level of the units internal speaker. The SUBWOOFER OUT output is also changed. * The VOLUME knob do not affect the line outs.

3. POWER Indicator

This indicator lights when the unit is turned on.

4. POWER Switch

This switches the power on and off. * Before turning the power on or off, be sure to put the VOLUME knob at 0. * This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required before the unit will operate normally. * Refer to p. 11 for the order in which to turn the power to connected devices on and off.

Jack Panel

fig.21

KC-550 only

CHANNEL INPUT

5. CH 1 Input Jacks

In addition to a standard jack, this channel is equipped with a balanced XLR connector, useful for connecting mics. Use this for connecting mics, keyboards, sound modules, and other devices. Input levels ranging from mic input (-50 dBu) to line level (-20 dBu) are accepted.

7. LINE OUT

LINE OUT Jacks
(XLR-type connectors are featured only on the KC-550) Connect a mixer or recording device to either (or both) of these pairs of outputs. There are two types of connectors: an XLR type and an unbalanced TRS 1/4" phone jack on the KC550. The TRS 1/4 phone jack are unbalanced type. Use the one appropriate for the equipment youre connecting. This output jack provides +4 dBu line level output. If youre making a mono connection, connect to the L (MONO) phone jack. * MASTER CONTROL (equalizer, SHAPE switch and VOLUME knob) do not affect LINE OUT.
6. CH 2, CH 3 and CH 4 Input Jacks
Use these for connecting keyboards, sound modules, and other devices. They accept line level input (-20 dBu). You can select the output for signals input to CH 4 (p. 6).
8. GND LIFT Switch (KC-550 only)
This selects whether the XLR-type LINE OUT jacks are grounded or not. If you encounter noise problems that are possibly caused by a ground loop, try changing the switch position to alleviate the problem.

9. STEREO LINK

Stereo playback is enabled simply by connecting two KC-550 or KC-350 units with a single audio cable (phone type). * For details on the Stereo Link function, refer to Stereo Link (p. 12).

10. SUBWOOFER OUT Jack

This lets you play even more powerful bass by connecting a powered subwoofer. Provides full-range output, at an output level of +4 dBu. You can use the MASTER CONTROL knobs (LOW, MIDDLE,

STEREO LINK OUT Jack

Connect this jack to the STEREO LINK IN jack on a sub (L) KC-550/KC-350 when using a Stereo Link configuration. This output jack provides 0 dBu line level output. When a cable is connected to the STEREO LINK OUT jack, the right-channel input signals are output from the internal speakers. The left-channel input signals are output from the STEREO LINK OUT jack to the other KC-550/KC-350.

HIGH, and VOLUME) to adjust the tone and volume level. * SHAPE switch do not affect SUBWOOFER OUT.

11. AUX IN Jacks

These are RCA phono type input jacks. You use these to connect equipment such as CD and MD players, and have them sound along with the equipment connected to CH 1 through CH 4. They accept level input of -10 dBu. * To adjust the volume level of equipment connected to the AUX IN jacks, use the controls on such equipment.

STEREO LINK IN Jack

Connect this jack to the STEREO LINK OUT jack on the main (R) unit (the other KC-550/KC-350) when using a Stereo Link configuration. This accepts level input of 0 dBu. Only the STEREO LINK IN input signals are output from the internal speakers.
Connect your KC-550/KC-350
Refer to the following diagram and connect the KC-550/KC-350 to the external equipment you are using.

fig.30-1

Stereo Headphone
INPUT KC-550 only Stereo Link (P.12) OUTPUT

Rhythm Machine Mixer

OUTPUT

Keyboard

Subwoofer (With built-in amp)

CD Player

Here is an example of a setup that makes full use of the KC550/KC-350s mixer and monitor functions. A mic is input to CH 1, which accepts mic level input. Connect a keyboard, recorder, or other sound-generating device to the CH 2, CH 3 and CH 4 inputs. The KC-550s line outputs include both XLR-type and 1/4" phone connectors. Furthermore, both types can be used simultaneously. * To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections. Set all of the KC-550/KC-350s channel volume knobs (CH 1, CH 2, CH 3 and CH 4) as well as the VOLUME knob to zero.
* The pin assignment for the XLR type connectors is as shown below. Before making any connections, make sure that this pin assignment is compatible with that of all your other devices.

fig.31

* When connection cables with resistors are used, the volume level of equipment connected to the inputs (CH 1 through CH 4, AUX IN and STEREO LINK IN) may be low. If this happens, use connection cables that do not contain resistors, such as those from the Roland PCS series. * Howling could be produced depending on the location of microphones relative to speakers. This can be remedied by: 1. Changing the orientation of the microphone. 2. Relocating microphone at a greater distance from speakers. 3. Lowering volume levels.

Switching the Power On and Off
Once the connections have been completed, turn on power to your various devices in the order specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. * Before switching off the power, lower the volume on each of the devices in your system and then TURN OFF the devices in the reverse order to which they were switched on. 1. Make sure that all volume controls on the KC-550/KC350 and connected devices are set to 0. 2. Turn on all the devices connected to the KC-550/KC350s input jacks (CH 1 through CH 4 and AUX IN). 3. Turn on the KC-550/KC-350. 4. Switch on any equipment connected to the KC-550/KC350s LINE OUT or SUBWOOFER OUT jacks. 5. Adjust the volume levels for the devices. * This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required before the unit will operate normally. For protection from sudden big sound, always make sure to have the volume level turned down before switching on power. Even with the volume all the way down, you may still hear some sound when the power is switched on, but this is normal, and does not indicate a malfunction.
About the Volume-level Settings
In order to get optimum sound from the KC-550/KC-350 when performing, set the volume as described below. 1. Operate the CH 1 through CH 4 volume knobs to adjust the volume level for CH 1 through CH 4.

fig.11

Adjust the volume balance for CH 1 through CH 4 at this time. * To adjust the volume level of equipment connected to the AUX IN jacks, use the controls on such equipment. 2. Adjust the LOW, MIDDLE and HIGH knobs to obtain the sound quality you want. 3. Use the VOLUME knob to adjust the overall volume level.

fig.12

* If the sound is distorted, lower the CH 1 through CH 4 volume knobs, VOLUME knob and/or the volume knobs for devices connected to the input jacks (CH 1 through CH 4 and AUX IN).

Stereo Link

Stereo playback is enabled simply by connecting two KC-550 or KC-350 units with a single audio cable (phone type). This function is called Stereo Link. As the channel control section is designed to accept stereo signals, connection of sound sources is needed only at the main unit, thus enabling channel volumes to be centrally controlled on the main unit. The right-channel signals are output from the speakers in the main unit, while the left-channel signals are output from the speakers in the sub unit (the other KC-550/KC-350).

fig.30-2

Sub (L-channel signals)

Main (R-channel signals)

Connections

When using a Stereo Link configuration, connect all peripheral equipment to the main unit. Do not connect to any input/ output jacks on the sub unit other than STEREO LINK IN. * Before making the connections, be sure that the volume setting of the VOLUME knob for both amplifiers is set to 0.
About the Volume and Tone Settings
Adjust the Main (R) and Sub (L) volume levels separately using their VOLUME knobs. * You can make each unit's equalizer (LOW, MIDDLE and HIGH knobs), SHAPE switch, VOLUME knob, and MAIN (R) and SUB (L) settings independently. Basically, they should be set to the same positions, but you can adjust each one as necessary to suit the needs of a particular setup.
Switching the power on or off
Once the connections have been completed, turn on power to your various devices in the order specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. 1. Turn on the devices connected to CH 1 through CH 4. 2. Turn on the main KC-550/KC-350 amplifier. 3. Turn on the sub KC-550/KC-350 amplifier. 4. Turn on the devices connected to LINE OUT or SUBWOOFER OUT. 5. Adjust the volume levels on all devices. Before switching off the power, lower the volume on each of the devices in your system, then TURN OFF the devices in the reverse order of that used when switching them on.
Proper Use of the Casters
The KC-550 is equipped with casters, which make it easier to transport.
Attaching and Removing the Casters
You can attach or remove the casters as shown in the following figure. Be sure to remove all the casters when accidental movement may be dangerous, such as when setting up the KC-550/ KC-350 on stage, or when transporting it in a vehicle. This is a heavy piece of equipment. To prevent injury caused by the unit overturning or being dropped, two or more people should work together when carrying the unit.
If casters have been attached to the amp, make sure it is used only on a stable, level surface.

fig.40

Block Diagram

fig.50

PHONES LINE OUT SPEAKER

CH1 BALANCED CH1 L/R

CH 1 VR

MIDDLE

TWEETER

VOLUME

POWER AMP

WOOFER

CH2 L/R

CH 2 VR

STEREO LINK USE: R ch Only OTHER: L ch & R ch Mix

SUBWOOFER OUT

CH3 L/R

CH 3 VR

LINE OUT XLR L/R LINE OUT L/R

CH4 L/R

CH 4 VR OUTPUT SEL

PHONES (STEREO)

AUX IN L/R L ch Input Only LINK IN L ch Output Only

LINK OUT

Main Specifications
KC-550: STEREO MIXING KEYBOARD AMPLIFIER SPECIFICATIONS

Rated Power Output

Connectors
CH 1 INPUT Jack (XLR type) CH 14 INPUT L (MONO) Jacks (1/4" phone type) CH 14 INPUT R Jacks (1/4" phone type) LINE OUT L (MONO) Jacks (XLR type, 1/4" phone type) LINE OUT R Jacks (XLR type, 1/4" phone type) AUX IN Jacks (RCA phono type) SUBWOOFER OUT Jack (1/4" phone type) STEREO LINK OUT Jack (1/4" phone type) +4 dBu 0 dBu +4 dBu STEREO LINK IN Jack (1/4" phone type) PHONES Jack (Stereo 1/4" phone type)

Nominal Input Level (1 kHz)
Channel 1 (MIC/LINE): Channel 24 (LINE): STEREO LINK INPUT: AUX IN: -50 -20 dBu -20 dBu 0 dBu -10 dBu
Nominal Output Level (1 kHz)
LINE OUT (XLR type, Phone type): STEREO LINK OUTPUT: SUBWOOFER OUT: * 0 dBu = 0.775 Vrms
AC 117 V, AC 230 V, AC 240 V

Speakers

38 cm (15 inches) x 1 Tweeter x 1

Power Consumption

Dimensions
590 (W) x 445 (D) x 590 (H) mm 23-1/4 (W) x 17-9/16 (D) x 23-1/4 (H) inches (including casters) 590 (W) x 445 (D) x 536 (H) mm 20-1/4 (W) x 21-5/16 (D) x 21-1/8 (H) inches (excluding casters)

Controls

CHANNEL CONTROL CH 1 VOLUME Knob CH 2 VOLUME Knob CH 3 VOLUME Knob CH 4 VOLUME Knob OUTPUT SELECT Switch PHONES VOLUME Knob MASTER CONTROL EQUALIZER LOW Knob MIDDLE Knob HIGH Knob SHAPE Switch VOLUME Knob POWER Switch GND LIFT Switch

Weight

29.0 kg 63 lbs 15 oz

Accessory

Owners Manual Casters
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

Indicator

KC-350: STEREO MIXING KEYBOARD AMPLIFIER SPECIFICATIONS
CH 1 INPUT Jack (XLR type) CH 14 INPUT L (MONO) Jacks (1/4" phone type) CH 14 INPUT R Jacks (1/4" phone type) LINE OUT L (MONO) Jack (1/4" phone type) LINE OUT R Jack (1/4" phone type) AUX IN Jacks (RCA phono type) SUBWOOFER OUT Jack (1/4" phone type) STEREO LINK OUT Jack (1/4" phone type) STEREO LINK IN Jack (1/4" phone type) PHONES Jack (Stereo 1/4" phone type)
Channel 1 (MIC/LINE): Channel 2--4 (LINE): STEREO LINK INPUT: AUX IN: -50 -20 dBu -20 dBu 0 dBu -10 dBu
LINE OUT (Phone type): STEREO LINK OUTPUT: SUBWOOFER OUT: * 0 dBu = 0.775 Vrms +4 dBu 0 dBu +4 dBu
30 cm (12 inches) x 1 Tweeter x 1
490 (W) x 385 (D) x 470 (H) mm 19-5/16 (W) x 15-3/16 (D) x 18-9/16 (H) inches
CHANNEL CONTROL CH1 VOLUME Knob CH2 VOLUME Knob CH3 VOLUME Knob CH4 VOLUME Knob OUTPUT SELECT Switch PHONES VOLUME Knob MASTER CONTROL EQUALIZER LOW Knob MIDDLE Knob HIGH Knob SHAPE Switch VOLUME Knob POWER Switch

22.0 kg 48 lbs 9 oz

Owners Manual
For EU Countries This product complies with the requirements of European Directives EMC 89/336/EEC and LVD 73/23/EEC.

ROLAND GR-55 GUITAR SYNTHESIZER TRAINING GUIDE
Contents 1. FEATURES 2. QUICK DEMO 3. GOING DEEP 4. FIVE FEATURES TO KNOW and SHOW 5. ACCESSORIES 6. GR-55 DETAILS
Roland GR-55 Training Guide
1. FEATURES Four sound sources: two sets of PCM-based synthesis plus COSM VG-type guitar/bass modeling and actual guitar sound Two sets of Multi-FX for independent processing of PCM and COSM based sounds EZ Edit plus full parameter programming USB-audio and MIDI interface Built in looper Three audio outputs: mix L,R plus guitar Second USB port for data transfer, audio playback via flash drive Over 900 Synth sounds Instant alternate tunings via COSM modeling Works with guitar and bass Huge on board memory: 270 presets, 297 user in guitar mode, 90 preset/ 297 user in bass mode Built-in assignable Control and Expression pedals Built-in chromatic tuner Includes GK-3 Divided Pickup GR-55GK: $1,119 List; $799 MAP GR-55S (w/o GK-3) $979 List; $699 MAP

2. QUICK DEMO

The Quick Demo is a way to get a customer interested in a product in less than 60 seconds.

Before You Start

Selecting the OUTPUT 1. Press the EDIT button.
2. PAGE RIGHT to select the SYSTEM page.
3. Using the VALUE DIAL, highlight OUTPUT SELECT.

4. Press ENTER.

Using the VALUE DIAL, select the sound source you are connecting the GR-55 to. Press EXIT several times to return to the main menu. If you have a keyboard amp, such as a Roland KC-350 or other pro quality amp, or a PA: 1. Connect the Left and Right MAIN OUTPUTS of the GR-55 to two channels of the amp or PA. 2. Set the amps tone controls for a flat response. If you only have a guitar amp: 1. Connect the MONO OUTPUT of the GR-55 to a clean channel of the amp. 2. Set the EQ for a flat response.
Setting the Sensitivity This is the most important procedure of the GR-55. Setting sensitivity adjusts how the GR-55 responds to how you play; its much like getting a level when recording. Done correctly, the GR-55 will track extremely fast and accurately, and your demo will be effective. 1. Connect a divided pickup equipped guitar (ESP GK demo guitar, Fender Roland Ready Strat, Godin with Synth Access, or other) to the GR-55 via the included 13-pin cable. 2. Set the Input Sensitivity: a. Press the EDIT button. b. Press PAGE RIGHT or PAGE LEFT to select the SYSTEM page. c. Using the DIAL, highlight GK SETTING.

d. Press ENTER.

e. In the GK SET screen, use the CURSOR UP or DOWN buttons and the VALUE DIAL to set the appropriate PU TYPE (pickup type) and SCALE of the guitar you are using. For the ESP GK guitar, use GK3 and ST.

VALUE DIAL

f. Press PAGE RIGHT button twice to select the SEN (sensitivity) PAGE.
g. Play an open string as hard as you are likely to play it. The GR-55 will automatically show the sensitivity level of that string in the display, Use the CURSOR UP/DOWN buttons and the VALUE DIAL to select and adjust the sensitivity so that it reaches the farthest point only on the very strongest notes. h. Use the CURSOR UP/ DOWN buttons and VALUE DIAL to select and adjust the other strings. i. When you are finished, press EXIT several times to return to the Main screen.

THE QUICK DEMO

STEP ONE: Show Some COSM Guitar Sounds 1. Press the RHYTHM button, and turn the VALUE DIAL to select RHYTHM 05-3 LP+STACK.
2. Play some power chords or leads. 3. Select RHYTHM 11-2 AC->12stAC (CTL). 4. Play some chords or leads. 5. Press the CTL Pedal. The sound will change from a 6-string acoustic to a 12-string acoustic.
6. Play some chords or leads.
STEP TWO: Show Simple Synth Sounds 1. Select LEAD 07-1 Concert Grand. 2. Play some chords or leads. 3. Select RHYTHM 02-1 RICH STRINGS. 4. Play some big chords.
STEP THREE: Show Combination Sounds 1. Select OTHER 10-2 Sequence Clean. 2. Play some chords. 3. Press CTL to hold the synth sounds. 4. Play guitar over the synth sounds, 5. Adjust the EXP pedal to change the speed of the pattern and the guitar tremolo. 6. Select USER 07-2 Syn Str. Pdl Reso 7. Play some chords. 8. Rock the EXP pedal to activate the filter. 9. Press CTL to remove the guitar from the sound.
STEP FOUR: Show the Looper 1. Select OTHER 27-2 Shanai+Rhythm 2. Press Pedal 3 and CTL simultaneously to arm the Looper. The CTL pedal LED will flash. 3. When you are ready, press CTL and play a simple chord pattern. The LED will flash quickly. 4. Press CTL to end the loop recording and play back the loop. 5. While the loop is playing, select OTHER 26-1 AggroClav. 6. Press CTL to record this sound over the first loop. 7. Press CTL to continue playing over the loop. 8. Press CTL twice to stop recording. 9. Press Pedal 3 and CTL to exit loop recording.

3. GOING DEEP

How To Find Specific PCM Sounds 1. 2. 3. 4. 5. 6. 7. 8. From the Play screen, press EDIT. Press CURSOR UP/DOWN to select a PCM sound. Press ENTER. Press CURSOR UP/DOWN to select TONE CATEGORY. If necessary, turn the VALUE DIAL to select a Category. Press CURSOR DOWN to select TONE NUMBER. Turn the VALUE DIAL to select a Tone. Press EDIT to return to the Main screen.
How to Change the Structure (effect chain) 1. 2. 3. 4. 5. Press EDIT. Press PAGE LEFT/RIGHT to select the EFFECT page. Press ENTER. Press CURSOR LEFT to select STRUCT (Structure). To change the STRUCTURE, turn the VALUE DIAL.
How to Assign Effects to a Tone 1. 2. 3. 4. Use the above procedures to the STRUCTURE page. Press CURSOR LEFT to select a Tone. Turn the VALUE DIAL to assign the Tone. Press EXIT to return to the Main screen.
How to Edit Tone Parameters 1. 2. 3. 4. 5. 6. 7. Press EDIT. Press PAGE LEFT/RIGHT to select the TONE page. Press CURSOR UP/DOWN to select a TONE. Press ENTER. Press CURSOR UP/DOWN to select a parameter. Turn the VALUE DIAL to adjust the parameter. Press EXIT to return to the Main screen.
How to Use the Tuner 1. 2. 3. 4. Press PEDAL 2 and PEDAL 3 simultaneously. Press PAGE LEFT/RIGHT to select MULTI MODE or SINGLE MODE. Tune each string. Press EXIT or PEDAL 2 and PEDAL 3 simultaneously to exit the TUNER.
How to Use the Looper 1. Press PEDAL 3 and the CTL PEDAL simultaneously. The CTL LED will flash, indicating standby (record-ready) mode. 2. Press CTL to start to recording. The LED will flash quickly to indicate recording mode. 3. Press CTL to end recording and start playback. The LED will stay on. 4. Press CTL to overdub. The LED will flash quickly. To erase or stop playback, press CTL twice quickly. The LED will flash indicating standby mode. 5. Press PEDAL 3 and CTL simultaneously to exit the Looper. 6. NOTE: the GR-55s looper can record for a total of 20 seconds.
4. FIVE THINGS TO KNOW and SHOW
1. Revolutionary guitar processor combines advanced PCM synthesis and COSM modeling to create virtually any sound 2. Four simultaneous tone types: two PCM synth sounds, plus COSM modeling sounds plus normal guitar input sound 3. EZ EDIT plus full programmability 4. MIDI out and USB MIDI and audio out for direct connection to other synths, DAWS, computers, etc. 5. Second USB port for backup, data transfer, and audio playback via flash drive

5. ACCESSORIES

1. Roland FC-300 MIDI Control Pedal 2. BOSS Bag-S2 Carrying bag 3. Roland RH-5, RH-200 or other headphones 4. Instrument cables

6. GR-55 DETAILS

PCM SOUND CATEGORIES CATEGORY NAME AcPiano Pop Piano E. Grand Piano E.Piano1 E.Piano2 E.Organ PipeOrgan Reed Organ Harpsichord Clav Celesta Accordion Harmonica Bell Mallet Ac. Guitar E.Guitar Dist.Guitar Ac.Bass E.Bass Synth Bass Plucked/Stroke Solo Strings NUMBER of TONES 9 CATEGORY NAME Ensemble Strings Orchestral Solo Brass Ensemble Brass Wind Flute Sax Recorder Vox/Choir Scat Synth Lead Synth Brass Synth Pad/Strings Synth Bellpad Synth PolyKey Synth FX Synth Seq/Pop Pulsating Beats/Groove Hit Sound FX Percussion Drums NUMBER of TONES 14
COSM TONE CATEGORIES: Guitar CATEGORY NAME E: GTR E.BASS AC SYNTH NUMBER of TONES 5 6
COSM TONE CATEGORIES: Bass CATEGORY NAME E: GTR E.BASS SYNTH NUMBER of TONES 6
COSM GUITAR TYPES E.GTR NAME 01: CLA-ST 02: MOD-ST 03: H&H ST 04: TE 05: LP P-90 LIPS RICK 335 L4
ORIGINAL Vintage Fender Strat Recent Strat w/ EMG pickups Strat w/ 2 humbucking pickups Fender Telecaster Vintage Gibson Les Paul Standard Gibson Les Paul Jr. Danelectro 56-U3 w/ 3 lipstick pickups Rickenbacker 360 Gibson 335 Dot Gibson L-4CES
E.BASS (GUITAR) 16: JB Fender Jazz bass 17: PB Fender Precision bass E.BASS (BASS) 01: VINT JB 02: JB 03: VINT PB 04: PB 05: M-MAN 06: RICK 07: T-BIRD 08: ACTIVE 09: VIOLIN AC 11: STEEL
Early 1960s Jazz bass Recent Fender Jazz bass Early 1960s Precision bass Recent Precision bass 1970s Music Man Stingray Rickenbacker 4001 Gibson Thunderbird bass Alembic style bas w/ active pickups Hofner Beatle bass
12: NYLON 13: SITAR 14: BANJO 15: RESO SYNTH 18: ANALOG GR 19: WAVE SYNTH 20: FILTER BASS 21: CRYSTAL 22: ORGAN 23: BRASS
5 specific acoustic steel string guitars: Martin D-28, Martin 000-28, Vintage Gibson J-45, Vintage Gibson B-25 Guild D-40 Generic nylon string guitar Vintage Coral electric sitar Generic 5-string banjo Dobro single cone resonator guitar
Roland GR-300 analog synth Moog-type analog wave sounds bass synth w/ filter metallic synth sounds 3-drawbar organ tones lead synth w/ wind and brass tones