LavryBlack Series Model DA11 Stereo Digital to Analog Converter
Patent Pending >PiC< Playback Image Control
Lavry Engineering, Inc. P.O. Box 4602 Rolling Bay, WA 98061 http://lavryengineering.com email: techsupport@lavryengineering.com

April 8, 2011 Rev 1.5

Table of Contents
Table of Contents Subject Quickstart Guide- Basic Settings Quickstart Guide- Diagram 1, Settings and Operation Quickstart Guide- Diagram 1 Sections, Setting Mode Quickstart Guide- Diagram 1 Sections, Operation Mode Quickstart Guide- Infrared Remote Operation- Features and Connections Operation- USB input Operation- Configuring the XLR Outputs Operation- Front Panel and Setting Mode Operation- Setting Mode- Input selection : xlr, opt, usb, rca Page 10 11
Operation- Setting Mode- Output, Invert, Unbalanced Output, Dim 12 Operation- Operating Mode- >PiC< and Volume Control Operation- Determining the Correct Level Setting Operation- Optional Infrared Remote Control Operation- Enabling or Disabling IR Remote Safe Mode Specifications Limited Warranty 18 19

Quickstart Guide

Quickstart Guide- Basic Settings
To familiarize yourself with the operation of the front panel controls of the DA11, it is advisable to connect the DA11 to AC power before making any other connections, and to perform the following procedure- the Setting example (below). First, here are some basics: All switches on the DA11 are spring-loaded three position toggles, and automatically return to the center (no function) position. They are: (left-right), Exit-Set, Wide-Narrow, and Up-Down. The two switches under the SELECT legend are used to change basic settings. - Click the switch down to enter the Setting mode. A flashing LED appears as a cursor to indicate which setting can be changed. The display under the IMAGE legend has changed modes from the >PiC< status to displaying setting status. - The switch now moves the cursor left or right as indicated by the arrows. - The right switch toggles the setting at the cursor position On or Off each time the switch is clicked down in the set direction. Clicking more than once is OK! - Click the right switch up towards exit to exit the Setting mode. - Setting example- usb input, output On, pin 2 Hot for RCA connection: This procedure assumes settings have not been changed from the factory defaults, which are: xlr input, output on, invert off, pin2 on, pin 3 on, & dim off. The default setting status display looks like this (where symbolizes a rapidly flashing cursor):

1) 2) 3) 4) 5)

Turn the DA11 power on and wait for the two IMAGE LEDs to appear. Enter Setting mode by clicking the switch in the down direction. A rapidly flashing cursor appears at the first position on the left (xlr) indicating it is On. Click the switch down twice so a slowly flashing cursor appears at usb (slow= Off). Click the right (exit-set) switch down towards set and the cursor will begin flashing rapidly to indicate the usb input is On. The LED above xlr will go dark (xlr is now Off). 6) Click the switch down five times to position the flashing cursor above the pin 3 legend. The LED above usb will stop flashing and stay illuminated. 7) Click the right switch down towards set and the cursor will change from flashing rapidly to flashing slowly to indicate that Pin 3 is off (it has been grounded). symbolizes the slowly flashing cursor):

The display should look like this (where
Hint: To double-check if the setting is correct, use the switch to move the cursor away from the setting you just changed to see if its LED indicator is On or Off (instead of flashing). 8.) Click the right switch up towards exit to exit the Setting mode. After about ten seconds, the LE symbol will appear in the VOLUME display to indicate the settings have been stored in memory and the DA11 is now in Operating mode. 9.) Please reduce the DA11s Volume setting to a low value (00 to 05), wait for the LE symbol to re-appear before turning the power Off, and see the CONNECTIONS section of the manual. Please Note: Do not use earbuds or other headphones designed for portable battery-powered units such as MP3 players with the DA11. Damage to the headphones may result.
Quickstart Guide- Settings and Operation The DA11 front panel has three sections: (Diagram 1)
There are two main modes for the DA11- the Operating Mode and the Setting Mode. - In Operating mode, the front panel displays the status of the >PiC< Playback Image Control in the IMAGE section (as shown on Page 6). The legend above the window applies in this mode (wide-narrow, +2, +1, etc). The VOLUME display indicates the setting of the volume control when the volume is adjusted and for approximately 10 seconds afterwards. The VOLUME display then reverts to displaying LE. - In Setting mode (as illustrated above), status of the settings is displayed along with the position of the cursor in the IMAGE display section. The legend below the window applies in this mode (xlr, opt, usb, etc). The position of the cursor is denoted by the flashing LED. When an active input is selected, the VOLUME display will indicate the sample rate of the digital audio input. If the input is not locked or there is no signal present on the selected input, the VOLUME display shows the symbol - - - Approximately 10 seconds after exiting Setting mode, the VOLUME display reverts to LE to indicate that the settings have been stored in non-volatile memory. This means the DA11 will retain the settings even if the power is turned off. Any time the VOLUME display reverts to the LE symbol, the settings are stored, including after any volume adjustment from the front panel or remote.
Diagram 1, Section 1- Setting Controls
The two switches under the SELECT legend on the left side of panel control the Setting mode of the DA11. The first switch labeled with the symbols has two functions: - Clicking the switch down in the Operating mode causes the DA11 to enter Setting mode. A flashing cursor and indicators for settings that are on will appear in the IMAGE display window. The legend under the window apply in this mode (xlr, opt, usb, etc.). - While in Setting mode, clicking the switch down moves the cursor one position to the right and clicking the switch up moves the cursor one step to the left. - For convenience, the position of the cursor is retained when exiting Setting mode. The cursor will appear at the same position when Setting mode is re-entered and clicking set will turn the same function on or off. The exception occurs when AC power is first turned on; in this case the cursor will always appear in the left-most position (xlr). The second switch is labeled exit and set. - Clicking the switch down (set) toggles the function On and Off. In the case of selecting an input, the input at the cursor position is enabled and all other inputs are disabled. - Clicking the switch up (exit) immediately exits the Setting mode. - After exiting the Setting mode, clicking the switch in either direction has no effect.

- Pin 2 & Pin 3. These settings determine the configuration of the output for balanced or unbalanced operation. A typical use would be to set the outputs to Pin 2 On and Pin 3 Off when connecting the DA11 to a preamp with RCA inputs. This applies to the included adapters, as well as most standard XLR to RCA adapters and adapter cables. Please see CONFIGURING THE XLR OUTPUTS for details on the correct settings. - If pin 2 is on as indicated by the LED above the pin 2 label, Pin 2 is active (has audio signal present) on both the left and right output XLR connectors. If pin 2 is off as indicated by the LED above the pin 2 label, Pin 2 is grounded on both the left and right output XLR connectors. - If pin 3 is on as indicated by the LED above the pin 3 label, Pin 3 is active (has audio signal present) on both the left and right output XLR connectors. If pin 3 is off as indicated by the LED above the pin 3 label, Pin 3 is grounded on both XLR connectors. - If either pin 2 or pin 3 is already off, setting the opposite pin to off will turn the first pin on so that a least one pin is always active. - If both pins are on, the output is configured for balanced operation. - If pin 3 is off, the outputs are configured for Pin 2 Hot unbalanced operation. - If pin 2 is off, the outputs are configured for Pin 3 Hot unbalanced operation. - Dim. This function sets the brightness level of the front panel display. When dim is on as indicated by the LED, the front displays are dimmed to approximately half brightness.
Diagram 1, Section 3- Sample Rate Display (Setting mode)
- In Setting mode this window displays the sample rate of a digital input that is valid and locked. For standard sample rates of 44.1, 48, 88.2, or 96 kHz, the first two digits of the actual sample rate are displayed, so an input that is locked to a valid 88.2 kHz sample rate would be indicated by an 88 in the VOLUME display. Please see the OPERATION section of the manual for details. - In Setting mode if the DA11 is not receiving a valid signal on the selected input or there is nothing connected, the symbol - - appears in the VOLUME display. This can be quite useful when troubleshooting problems. For example: Why is no music coming from the DA11 outputs when my computer (USB source) is playing a track in the player software? Please see the section titled USB INPUT for more details.
Diagram 1, Section 2- >PiC< Playback Image Control (Operating mode)
This section controls the stereo image in both the main (XLR) outputs and the headphone output. It consists of the LEDs below the IMAGE legend (+2, +1, etc.) and the two switches labeled wide narrow and narrow wide. Moving the settings in the wide direction increases the apparent width of the stereo image, and moving the settings in the narrow direction decreases the stereo width (making it more mono). The left and right controls are independent of each other, and can be used to alter the stereo image of asymmetric mixes (true stereo recordings, for example) or adjust for asymmetrical speaker placement. When both LED indicators are on 0, the stereo image is not altered. Please note that the perceived effects of these adjustments are very program dependent, and may result in a change in acoustic volume level. - When Mute is activated from the optional infrared remote, in Operating mode both IMAGE indicator LEDs will go dark to indicate that the Mute function is active. - Please note that the switches are always active in both Operating and Setting modes, unlike the LED indicators which change function depending on the mode.

Diagram 1, Section 3- Volume Control (Operating mode)
This section consists of the VOLUME display and the up/down switch. - The up/down switch always controls the volume in both Operating and Setting modes. - Please see the section titled Determining the Correct DA11 Volume Setting for Your System for important information when connecting the DA11outputs to other equipment. In Operating mode the VOLUME display has two types of indication: - It displays the volume setting during adjustment via the front panel up/down switch, after IR remote commands are received, and for approximately 10 seconds thereafter. - It displays LE at other times in Operating mode to indicate that the settings have been stored in memory, and that the infrared remote functions have been gated off to prevent accidental changes to the settings (if the gating function is enabled-see below).
Optional Infrared RemoteThe DA11 is programmed to accept standard Philips RC5 TV infrared remote commands. This means almost any Universal infrared remote control can be programmed to control the DA11. Be sure to check the package of the universal remote to confirm it works with Philips TVs. Follow the instructions that come with the universal remote, and program the remote using the code in the instructions for a Philips TV. If the first code does not work correctly, there is often more than one code available; so try a different code that is also for a Philips TV. - Please note: If SAFE MODE is enabled, you must press and hold 0 on the remote until the LE symbol changes to the numeric Volume display before the DA11 will respond to any remote functions other than Mute. Toggling the Mute function will confirm that the remote is programmed properly. The IMAGE LEDs go dark when MUTE is On. - This gating function is called the SAFE MODE and is disabled by factory default. Please see the OPTIONAL INFRARED REMOTE section of the manual for more details.

Operation

MODEL DA11
The LavryBlack DA11 features:
Ultra low jitter mode Patent Pending >PiC< Playback Image Control Accepts input sample rates between 30kHz and 200kHz virtually eliminates sonic degradation due to jitter Potentiometer-free digitally controlled analog volume circuitry High power discrete headphone output XLR, USB, RCA (Coaxial) and Optical (Toslink) digital inputs Optional Infrared Remote control Power On/Off muting protection on Main XLR and Headphone outputs Balanced or unbalanced outputs with Polarity Inversion Included XLR to RCA adapters for easy connection to RCA inputs

Once the inputs and outputs have been connected: - Connect the AC power cord to the DA11s back panel power entry receptacle. - Connect the DA11 and other devices to an AC power source. The DA11 will automatically adjust to inputs in the range of 90-264 VAC- no need to change settings!

USB INPUT

With computer USB audio, the playback must be Stopped before normal playback is initiated. The effect of this can be seen in the Setting mode of the DA11 by an indication of the sample rate or - - in the VOLUME display. One example of this is if the AC power on the DA11 is turned Off and On while the USB input is selected. If the audio software was playing when the power was cycled, the DA11 will display - -" in Setting mode until the playback is stopped (not paused!) and started again. There will be no sound reproduced until the sample rate indication reappears. It is advisable to keep the DA11 volume setting low until sound is reproduced! The DA11 has a USB input compatible with the USB 2.0 standard. There is some basic set-up required for consistent operation of the DA11 using the Operating Systems driver. In current operating systems, once the output sample rate and Wordlength are selected in the setting dialog (Sound in Windows or Audio MIDI in Mac OS), this setting will remain in effect until it is manually changed. This means that the output sample rate will not automatically follow the settings of the playback software. If you play a file recorded at a different sample rate in the playback software, you must also change it in the setting dialog to avoid sample rate conversion being introduced automatically. You can check this while playing a file by looking at the sample rate indication in the front panel Volume display of the DA11 in Setting mode. The alternative is less of a purist approach, but easier- rip all of your files at the same sample rate so the playback sample rate does not change. Because the sample rate conversion does not happen in real time, a more accurate conversion is possible, so the final quality should be better than letting the computer automatically introduce sample rate conversion during playback. Windows XP: First, set the Volume control of the DA11 to a low value: 00 to 05. With Windows started normally and the DA11 power On, connect the USB cable from the DA11 to a USB port on the PC. A small window should pop-up to indicate that Windows has recognized the USB device. Although the DA11 should now be capable of playing digital audio from an application, it is a good idea to change a few settings for consistent operation.
- Go to the START menu and select Control Panel. - When the list of control panels appears in the Control Panel dialog, select the Sound and Audio Devices control panel. - Click on the Audio tab at the top. - In the Sound Playback section select Lavry DA as the default device from the drop-down list. - It is suggested that you check the Use only default devices checkbox near bottom of dialog. - Click the Apply button. - In the Sound Playback section, click on the Volume button. The software mixer should appear. - Move the faders on the inputs used for playback to the very top position for unity gain. For example: the Wave and CD Player inputs. Close the mixer window. - Click on the Volume tab at the top (not the Volume button!). - The Lavry DA should now appear next to the speaker symbol in the top left corner of the dialog. The Device Volume will appear grey. - Click OK to save all the settings and close the control panel. Windows Vista/Seven- First, set the Volume control of the DA11 to a low value: 00 to 05. With Windows started normally and the DA11 power On, connect the USB cable from the DA11 to a USB port on the PC. Windows Vista/Seven should recognize the device, load any drivers as necessary, and Vista will inform you when the Lavry DA11 is ready. Although the DA11 is now operational, it is a good idea to change a few settings for bit-accurate operation. - You can access the SOUND control panel in Vista or Windows Seven from the start menu; or the Playback Devices control panel by right-clicking on the speaker icon next to the clock on the right end of the taskbar and choosing PLAYBACK Devices from the fly out menu. -The Playback tab should be selected, and the LavryBlack DA should appear as a Speaker. If the DA11 is set as the Default device, a green check mark will appear next to the speaker symbol. If not, click once on the LavryBlack DA to select it, and then click on the Set Default button at the bottom of the control panel. - While the Lavry DA is highlighted, click on the Properties button at the bottom of the control panel. A second panel will open titled Speaker Properties, and the Lavry DA should be listed in the middle of the GENERAL tab in the Controller Information section. - Click on the LEVELS tab, and set the fader level to 100. - Click on the ENHANCEMENTS tab, and disable ALL enhancements for bit-accurate playback. - Click on the ADVANCED tab to set the output sample rate in the Default Format section. For bitaccurate playback, set the output to match the sample rate of the source audio file. Please note that 24 bit is always set. This is OK, even for 16 bit files. - In the Exclusive Mode section, you can select the mode so that only one software application at a time can play back through the DA11. This is not recommended, because it prevents other audio sources from playing back through the DA11 simultaneously. Macintosh OSX- First, set the Volume control of the DA11 to a low value: 00 to 05. With OSX started normally and the DA11 power On, connect the USB cable from the DA11 to a USB port on the computer. Although the DA11 should now be capable of playing digital audio from an application, it is a good idea to change a few settings for bit-accurate operation. - Select Utilities from the Finder GO menu. For easier access, you may want to drag the Audio MIDI Setup to the Dock. Open the Audio MIDI Setup dialog. Choose AUDIO DEVICES. There are two different procedures, depending on the version of the operating system: A.) The window has System Settings in the upper left corner and both Audio Input and Audio Output sections at the bottom of the window. In the Systems Settings set the Default Output to the Lavry DA using the arrows on the right side to choose it from the drop-down list. In the Audio Output section, select the sample rate that matches the sample rate of the file you wish to play, and always select 2 Ch. 24 bit as the output resolution (even when playing 16 bit files).

B.) The window is titled Audio Devices and there is a pane on the left side with icons and a list of Audio Devices. Click on the Lavry DA so it is selected (highlighted). The right side of the window should now have the heading Lavry DA. Select the sample rate that matches the sample rate of the file you wish to play, and always select 2 Ch. 24 bit as the output resolution (even when playing 16 bit files). Click on the gear Icon at the bottom of the left pane and select Use this device for sound output. - If you do not stop playback and manually select the correct sample rate before playing a file of a different sample rate, a rather low-quality sample rate conversion will automatically be introduced which can degrade the audio performance of the DA11. With some software, it may be necessary to actually close the playback program before changing the output sample rate settings to avoid double-sample rate conversion. Open the playback software after changing the output settings.
CONFIGURING THE XLR OUTPUTS:
The unit is factory configured to operate in Balanced output mode. The balanced audio signal appears on Pin 2 and Pin 3 of the XLR outputs. Pin 1 is a ground connection for the cable shield. The unit may be configured using the Setting mode to drive unbalanced inputs. The default setting for the polarity invert function is off, which results in the signal Polarity of the XLR outputs being Pin 2 + and Pin 3. This is also the correct setting for normal listening when using the XLR to RCA adapters included with the DA11. The included XLR to RCA adapters and many adapter cables are wired as Pin 2 Hot unbalanced. The XLR outputs are short-circuit protected, so operating the DA11 with the outputs configured incorrectly will not result in permanent damage. - If the outputs are configured for balanced operation and connected to unbalanced wiring, the reproduced audio will be significantly more distorted than with the proper configuration. - If the outputs are set for the unbalanced configuration opposite the correct one, there will be no audio reproduced. - The configuration of the XLR outputs has no affect on the headphone outputs. One way to confirm that the unbalanced setting is opposite the correct configuration is to check for the presence of audio in the headphones when there is no audio from the XLR outputs. An example of incorrect setting with XLR to RCA adapters is if the outputs are configured for Pin 3 Hot instead of Pin 2 Hot. This chart shows the status of the front panel LEDs in Setting mode and the signals on the XLR output pins with the (audio polarity) invert function set to off. The + denotes non-inverted signal polarity and the -"denotes inverted signal polarity. Setting for the XLR to RCA adapters included with the DA11 XLR Output Configuration LED status Balanced operation pin 2 on pin 3 on Unbalanced Pin 2 Hot pin 2 on pin 3 off Unbalanced Pin 3 Hot pin 2 off pin 3 on Pin 2 Signal Audio + Audio + Ground Pin 3 Signal Audio Ground Audio - *

*For Unbalanced Pin 3 Hot operation, the invert function would normally need to be turned on to make the polarity of pin 3 non-inverted. Please see the invert section (below) for details on the signal polarity. When in the Setting mode, the LEDs above each label indicate the status of each setting. Please remember that the cursor position affects the way an LED indicates the status: - At the cursor position, a rapidly blinking LED indicates on and slowly blinking cursor indicates off. - At all other positions, a steadily illuminated LED indicates on, and an LED that is not illuminated indicates off.
To set the XLR outputs for Pin 2 Hot Unbalanced operation (for included XLR to RCA adapters); 1.) Enter the Setting mode by clicking the switch marked down. 2.) The current setting of the XLR outputs is now displayed above the front panel designations pin 2 and pin 3. If it has not been changed from the factory setting, both LEDs above the pin 2 and pin 3 designations will be On, denoting balanced operation. 3.) Click the switch to move the flashing cursor until it is the above pin 3 legend. Click the right switch down once in the set direction to toggle pin 3 Off. The LED above pin 3 will be Off to indicate that pin 3 of the XLR outputs is now connected to ground.

OPERATION:

A. FRONT PANEL DISPLAYS There are two modes for the front panel controls of the DA11- Operating Mode and Setting Mode. The front panel displays serve different functions in the two modes, and may also change appearance in each mode to indicate changes in settings or input signals. In the center of the front panel, the IMAGE display has two modes: 1.) In Operating mode, two LEDs indicate the setting of the >PiC< Playback Image Control. The numbers above the display are the legend for this mode. 2.) In Setting mode the status of all of the programmable settings are displayed. The legend for the indicators in Setting mode is below the display- xlr, opt, usb, rca, output, pin 2, pin 3, dim. - In Operating mode, if the mute function is activated by the optional infrared remote, the entire display goes dark. - In Operating mode, if the SAFE MODE of the infrared receiver is disabled, the two LEDs that indicate the setting of the Stereo Image Control flash when the LE symbol appears. On the right side of the front panel, the VOLUME display has two modes: 1.) In Operating mode, the numerical value of the volume is displayed for ten seconds after the setting has been changed. After ten seconds, the LE symbol appears. 2.) In Setting mode, the VOLUME display indicates both the input sample rate and whether the selected input is locked to a valid signal. If the input is locked, the sample rate is displayed as a two digit number; if it is not locked or a signal is not present, the symbol - -" is displayed. Please see the section (below) titled xlr, opt, usb, rca in for details. - Any time the VOLUME display reverts from the numerical display to the LE symbol, the settings are stored in non-volatile memory. - In Operating mode with SAFE MODE enabled, the symbol LE indicates that the infrared receiver is gated off so that the DA11 will not respond to remote commands other than Mute. To open the gate, press the 0 button and the display changes to the numerical volume setting. Please see the section OPTIONAL INFRARED REMOTE for details. B. SETTING MODE To enter the Setting mode, click the switch under the SELECT legend once either up or down. The IMAGE display will change from indicating the setting of the >PiC< Playback Image Control to indicating the status of the programmable settings. To exit the Setting mode, click the right SELECT switch up towards exit. The displays will revert to the Operating mode with the IMAGE display indicating the setting of the >PiC< and the VOLUME display indicating the numerical volume setting for approximately 10 seconds. The symbol LE will appear after that to indicate the programmable settings have been stored in non-

volatile memory. This means the settings will be retained if the power is turned Off and restored when the power is turned back On. - The first time Setting mode is entered after power is applied, the left-most LED will begin flashing. If other functions or inputs are enabled, the LED above their legend will be illuminated. - When the Setting mode is exited, the position of the cursor is retained, so upon re-entering Setting mode it will appear at the same position (allowing setting changes to the same function). The LED at the cursor position indicates the status of the function differently than other positions- At positions other than that of the cursor, if the LED is illuminated (On), the function is enabled (On). If the LED is Off, the function is Off. - At the cursor position, if the LED is flashing at a fast rate, the function is On. If the LED is flashing slowly, the function is Off. !!! Please note that in the following function descriptions, the distinction between whether the LED is at the cursor position or not is omitted for clarity. For example: if the LED is On it is either rapidly flashing at the cursor position or steadily illuminated at other positions. - For single functions such as output, invert, or dim; when the right SELECT switch is clicked down to the set position, the function toggles between On and Off with each click. - The input selection is interlocked electronically, so selecting a new input de-selects the previous one. For example, if the xlr input is selected, and you position the cursor above the usb legend and click Set, the usb input will be selected and the xlr input will be deselected. - The XLR output pin2/pin 3 selection for unbalanced operation is interlocked in a similar manner. xlr, opt, usb, rcaThe first four positions in the Setting mode display are the digital audio inputs of the DA11, and correspond to the connectors on the back panel. To listen to the desired input, enter the Setting mode by clicking the switch once, and then click it either up or down to move the cursor to the position above the legend for the desired input. Once the cursor is above the desired input, click the right SELECT switch down in the set direction to toggle the input On. Clicking the switch again will toggle the input Off. If the input is On, the cursor flashes quickly and if the input is Off, the cursor flashes slowly. It is possible to turn all of the inputs Off. - Because only one input can be On at a given time, enabling a previously de-selected input will automatically de-select an input that was On. The numerical VOLUME display changes in Setting mode to indicate both the input sample rate and whether the input is receiving a valid signal and is locked (synchronized to the input signal). - If the input is locked, the VOLUME display indicates the sample rate of the input by displaying 44 for 44.1kHz, 48 for 48kHz, 88 for 88.2kHz, and 96 for 96kHz. The DA11 incorporates an advanced version of the Crystal mode introduced in the DA10- the. When the digital audio input of the DA11 is switched or the signal feeding the input is changed, the DA11 automatically checks the incoming sample frequency. If the sample frequency is close enough to the frequencies 44.1, 48, 88.2 or 96 kHz, the control circuitry automatically selects Crystal mode with enhanced jitter rejection. For all other input sample frequencies, a more standard PLL mode is employed which allows the DA11 to lock to input signals between 32 and 200 kHz. The DA11 operates in Wide lock mode and displays one of the four sample rates that is closest to the input sample rate. For example; an input that is locked to a valid 32 kHz sample rate would be indicated by a 44 in the VOLUME display. Switching between modes is seamless so that there is no loss of lock or muting when is engaged.

- If the input is not valid or not present, the DA11s input is not locked and the VOLUME display indicates this by displaying - -" instead of the numerical sample rate. - Please see the USB INPUT section for detail of the displays operation with a USB source. outputOne use for the output function is to mute the speakers while listening with headphones. The output function mutes the main XLR outputs and does not affect the headphone output. To mute the XLR outputs, enter the Setting mode and position the cursor above the output legend. Click the right SELECT switch towards set to toggle the outputs On and Off. - When the output LED is illuminated (On), the outputs are On. - When the output LED is Off, the outputs are Off (muted). - Please note: this function is different than the MUTE function of the optional infrared remote, which mutes all audio output from the DA11; including the headphone output. invertThe invert function affects the Polarity of both the main XLR outputs and the headphone output. The consequence of incorrect Polarity is subjective, and is quite often subtle. This setting is provided for two reasons: 1. To provide flexibility with output connection wiring. 2. To allow the signal polarity to be corrected when it is inverted due to polarity inversion in the recorded music or other equipment/wiring in your system. - Please note that this function operates in all configurations of the XLR outputs- balanced, unbalanced Pin 2 Hot, and unbalanced Pin 3 Hot. The sense of the function is reverse for unbalanced Pin 3 Hot operation and balanced Pin 3 + wiring (please see the chart below). The Polarity of the signal affects the motion of the speaker reproducing the audio, and if incorrect can affect the fidelity of the audio in a way that will vary with program material. If correct throughout the recording and reproduction process, a positive air pressure at the microphone will result in a positive pressure created by the speaker. If it is inverted, the speaker will move in the opposite direction and the resulting acoustic signal will be less accurate. Enter the Setting mode and position the cursor above the invert legend. Toggle the function On and Off with the Set switch. Below is a chart of the audio Polarity for different settings: Setting for the XLR to RCA adapters included with the DA11 Invert Function OFF ON LED OFF ON Balanced output Pin 2 +, Pin 3 Pin 2 -, Pin 3 + Unbalanced Pin 2 Hot Normal Inverted Unbalanced Pin 3 Hot Inverted Normal
pin 2, pin 3These functions are used to configure the XLR outputs for balanced, unbalanced Pin 2 Hot, or unbalanced Pin 3 Hot operation, and do not affect the headphone output or signal polarity. Balanced inputs are characterized by XLR connectors, and are typically wired so Pin 2 is + (non-inverting) and Pin 3 is - (inverting). Unbalanced inputs are typically RCA (also called coaxial Cinch connectors) or 1/4 phone jacks (similar to a large headphone plug with two conductors). Most consumer HiFi equipment has unbalanced RCA inputs. Although no damage will occur if these settings are not correct, connecting the DA11 to an unbalanced input with the incorrect settings will result in higher than normal distortion or no sound. Please see the section titled CONFIGURING THE XLR OUTPUTS for details on these settings. dimThis function adjusts the brightness of the front panel displays. When the function is On, the displays are approximately one half as bright as when the function is Off.

The display reverts to LE approximately ten seconds after the last Volume control input (front panel up/down switch or infrared remote). This indicates that the settings have been stored in non-volatile memory. Any time the volume is adjusted, the display will change from LE back to the numerical volume setting in Operating mode. Determining the Correct DA11 Volume Setting for Your SystemPlease be certain to configure the outputs of the DA11 for the proper balanced or unbalanced setting to match the wiring and inputs of your system. See the section titled CONFIGURING THE XLR OUTPUTS for details. There are two ways the DA11 can be used to listen to digital audio sources through speakers: 1.) Connect the main output of the DA11 to the input of a receiver or preamp, set the DA11 to a fixed level, and adjust the speaker volume using the volume control of the receiver or preamp. 2.) Connect the main output of the DA11 directly to the input of a power amp or powered monitors and use the Volume control of the DA11 to adjust the speaker volume. PLEASE NOTE: When operating the DA11 connected directly to a power amp or powered monitors, it is important to reduce the VOLUME of the DA11 to a very low setting BEFORE turning the AC power of the power amp or monitors ON! Because the DA11 is capable of driving professional level balanced inputs as well as consumer level unbalanced (RCA) inputs, some care is needed when using the DA11 with unbalanced consumer HiFi equipment. Although exceeding the absolute maximum input level is not likely to cause damage, it will reduce the quality of the listening experience. The first time you use the DA11 feeding equipment with a volume control, it is recommended that you start with the DA11 at a very low setting, and raise the volume on the preamp or receiver to a level you would use to listen to other inputs (Phono or FM radio, for example). Switch to the input that the DA11 is feeding, and raise the Volume setting of the DA11 until the acoustic volume is the same as other sources. Matching the acoustic level between sources will almost certainly mean you are not exceeding the input rating of your equipment! There is wide variation in the absolute maximum input level that HiFi equipment is capable of accepting without distortion. When this level is exceeded, the music program can be distorted regardless of the volume setting of the HiFi equipment because the distortion can be caused before the volume control. This could also occur when feeding a power amp or powered monitors directly, especially if the input level control of the power amp/monitors is turned down very low. It would be harder to detect in this situation, because the corresponding acoustic volume would typically be very loud. - Most consumer equipment with RCA inputs are designed to operate with an absolute maximum input level of 2V rms (which is 5.6 V peak-to-peak). When operating in unbalanced configuration, the VOLUME setting on the DA11 that corresponds to this level is 46. It is recommended to check the specifications and confirm this corresponds to the absolute maximum input rating of your equipment according to the manufacturer! If it does not, you should determine the correct setting of the DA11 that is the absolute maximum setting for your system. Please see the section titled Determining the Correct DA11 Volume Setting for other input ratings (below). - For professional equipment with balanced inputs, a VOLUME setting of 56 corresponds to +24dBu. Some professional equipment has a maximum input rating of +18 dBu, which corresponds to the VOLUME setting of 50 on the DA11 for balanced operation and 56 for unbalanced operation. In cases where the DA11 is feeding a consumer receiver or preamp, once the absolute maximum level has been established, the actual level used for typical listening may be lower than this value. As a rule, if you switch between analog sources on the receiver or preamp and there is a large

difference in volume between other sources and the DA11, it is probably better to lower the VOLUME setting of the DA11 below the absolute maximum level if it is much louder than other sources. It will probably take some experimenting with different music program to establish a good working volume with your system. There is a possibility that the optimum DA11 level setting will still result in the DA11 being slightly louder than other sources. It is also recommended that you not exceed the absolute maximum level, even with music program that has large variations in level, because a loud peak could occur that would cause distortion. In most cases, lowering the volume setting on the DA11 will degrade the signal quality less than lowering the volume control on the receiver below a setting which is normal for other analog sources (phono, FM broadcast, etc.). The digitally controlled analog level circuitry of the DA11 degrades the signal less than typical knob potentiometer volume controls on consumer equipment, particularly at lower level settings. Determining the Correct DA11 Volume Setting for other input ratingsUse the graph (below) to determine the proper maximum Volume control setting of the DA11 for other voltage values. For Volts rms or Volts p-p, find the voltage on the vertical scale on the right side of the graph and trace horizontally until it intersects the relevant curve (solid for rms, dotted for V peak to peak, balanced or unbalanced). At the point where the horizontal line intersects the curve, trace straight down to the scale on the bottom of the graph to find the closest DA11 Volume control setting that will be the maximum volume for your equipments inputs. Pro users can use the vertical scale on the left edge of the graph for the same purpose using dBu units. For example: if you find 2 volts on the right scale, and trace horizontally until it intersects the dotted Unbalanced Vrms curve, then trace down to the bottom scale, it intersects at 46.
If you have difficulty determining the correct setting, please contact techsupport@lavryengineering.com once you have the manufacturers ratings for your equipment.
Peak output levels for DA11 Volume Settings: Volume Setting --46 --XLR Balanced Operation 24dBu 18dBu --14dBu ---31dBu OFF XLR Unbalanced Operation 18dBu 12dBu --8dBu ---37dBu OFF

Headphone Level 18dBu 12dBu --8dBu ---37dBu OFF
AES/EBU professional analog line levels: Set to 56 for 24dBu balanced = 34.72V peak to peak = 12.28V rms Set to 56 for 18dBu un-balanced = 17.36V peak to peak = 6.14V rms A typical home power amp or powered speaker: Set to 40 for 8dBu balanced = 5.6V peak to peak = 2V rms Set to 46 for 8dBu unbalanced = 5.6V peak to peak = 2V rms

OPTIONAL INFRARED REMOTE

The DA11 is programmed to accept standard Philips RC5 TV infrared remote commands. This means almost any Universal infrared remote control can be programmed to control the DA11. Be sure to check the information on the universal remote package to confirm it works with Philips TVs. Follow the instructions that come with the universal remote, and program the remote using the code from the instructions for a Philips TV. If the first code does not work correctly, there is often more than one code available; so try a different code that is also for a Philips TV. Once the universal remote is programmed, it controls the DA11 in the following manner: 1.) The Mute button is always active and immediately toggles the audio outputs of the DA11 on and off. Please note that this does affect the headphone output and is therefore not the same as the output function in Settings mode. - To indicate the mute function has been engaged, in Operating mode the two LEDs in the IMAGE display will go dark unit the mute button is pressed again to un-mute the DA11. The mute function can also be turned off by operating the DA11s front panel volume up/down switch. 2.) The current factory default is for the SAFE MODE to be disabled. If SAFE MODE is enabled, all other commands are gated to prevent accidental changes. The symbol LE appears in the VOLUME display to indicate that the gate is closed and the DA11 will not accept infrared commands other than Mute. Press and hold the number 0 button for a few seconds, and the numerical volume setting will re-appear to indicate that the gate is open. As long as the numerical volume setting is displayed, the DA11 continues to accept remote commands. Please also note that the LE indicates when the settings have been stored in memory. Please see ENABLING or DISABLING SAFE MODE (below) for more information. - Pressing the Mute button also opens the gate. Once open, it is not necessary to press 0 to access the other remote functions until the LE symbol appears in the Volume display. For all of the following functions, it is assumed that SAFE MODE is disabled, or that the gate is open so the numerical setting is visible in the VOLUME display. 3.) To raise or lower the volume setting, press the Volume Up or Volume Down button on the remote. Similar to the front panel up/down switch, a single press of the remote button will change the volume by one step, and holding the button will make the setting change continuously until the button is released or the end of the adjustment range has been reached.

Warranty

LIMITED WARRANTY LAVRYBLACK SERIES MODEL DA11 Subject to the conditions set forth below, for one year after the original purchase date of the product, Lavry Engineering will repair the product free of charge in the United States in the event of a defect in materials or workmanship. Lavry Engineering may exchange new or rebuilt parts for defective parts. Please call the factory for an RMA number prior to shipment. No product will be accepted for warranty service without a pre-issued RMA number. This warranty is extended only to an original purchaser of the product from Lavry Engineering, or an authorized reseller of Lavry Engineering. Products that are purchased from unauthorized resellers do not have any warranty coverage. A valid purchase receipt or other valid proof of purchase will be required before warranty service is provided. This warranty only covers failures due to defects in materials or workmanship and does not cover damages which occur in shipment or failures resulting from accident, misuse, line power surges, mishandling, maintenance, alterations and modifications of the product, or service by an unauthorized service center or personnel. Lavry Engineering reserves the right to deny warranty service to products that have been used in rental, service bureau, or similar businesses. This limited warranty gives you specific legal rights. You may have others which vary from state/jurisdiction to state/jurisdiction. LIMITS AND EXCLUSIONS LAVRY ENGINEERING DOES NOT, BY VIRTUE OF THIS AGREEMENT, OR BY ANY COURSE OF PERFORMANCE, COURSE OF DEALING, OR USAGE OF TRADE, MAKE ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE OR NONINFRINGEMENT, AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. LAVRY ENGINEERING EXPRESSLY DISCLAIMS ANY IMPLIED INDEMNITIES. LAVRY ENGINEERING SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, SPECIAL OR EXEMPLARY LOSSES OR DAMAGES, INCLUDING, WITHOUT LIMITATION, DAMAGES TO RECORDINGS, TAPES OR DISKS, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, LOSS OF GOODWILL, COVER, OR OTHER PECUNIARY LOSS, ARISING OUT OF OR RELATING TO THE USE OF THE PRODUCT, OR ARISING FROM BREACH OF WARRANTY OR CONTRACT, NEGLIGENCE, OR ANY OTHER LEGAL THEORY, EVEN IF LAVRY ENGINEERING HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES OR DAMAGES. ANY DAMAGES THAT Lavry ENGINEERING IS REQUIRED TO PAY FOR ANY PURPOSE WHATSOEVER SHALL NOT EXCEED THE ORIGINAL COST PAID TO LAVRY ENGINEERING FOR THE APPLICABLE PRODUCT. BECAUSE SOME STATES/JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE FOREGOING LIMITATION MAY NOT APPLY TO YOU.

DA11 and the >PiC< (Playback Image Control) feature
By: Dan Lavry, Lavry Engineering, Inc. www.lavryengineering.com The >PiC< is a new patent pending concept. Is it just another feature? Or is it a must have feature? Mixing and mastering audio calls for much attention to proper stereo image. Virtually all of the music preparation is done while monitoring sound generated by speakers. However, this process is based on the assumption that the listeners (end users) listening environment will be similar to the space where the music preparation took place. That assumption is often incorrect. Often, speaker location in the home can not emulate a mastering facility setup. Furthermore, an extreme discrepancy occurs when the end user listens through headphones. The picture below is a basic representation of listening to stereo speakers
The left ear hears sounds generated by BOTH speakers. The right ear hears sounds generated by BOTH speakers. The impact of each speaker on the left ear differs from its impact on the right ear, but sound from each speaker impacts both ears noticeably. Without accurate crossover, the sound field becomes distorted. Proper adjustments by competent mixing and mastering engineers can create a very realistic listening experience. How much sound from the left speaker is heard by the right ear (or the right speaker on the left ear)? Try for your self, it is easy: 1. Turn off the right speaker 2. Listen to the left ear by blocking your right ear 3. Listen to the right ear by blocking your left ear
Clearly, the amount of sonic contribution from the opposite speaker is very significant.
It is not too difficult to realize that the distance between the speakers, as well as the distance between the listener and speakers plays a significant role in good creating a stereo image. If the speakers are right next to each other, their impact on both ears is nearly identical. Placing speakers too far apart also ruins the sound field. When using headphones, ALL of the left channel sound ends up at the left ear, and NONE of it at the right ear. Conversely, ALL of the right channel sound ends up at the right ear, and NONE of it at the left ear. The headphone listener loses the benefit of a proper (realistic) sound field, because the music was prepared for listening through speakers. Headphone listening without the >PiC<
Headphone listening with the >PiC<
Mixing and mastering engineers have many tools at their disposal (both software and hardware) for creating good stereo field. However, all the good work is based on the assumption that the playback setup properly emulates the music production setup. This assumption may fall apart at the PLAYBACK location, and no amount of preparation at the PRODUCTION locations can solve it ahead of time. Whenever the speaker location is less then ideal, or whenever the listener is using headphones, a correction at the PLAYBACK location is required, thus Playback Image Control. No one would argue that adding a 6dB bass boost, some heavy EQ, or compression is a subtle change. On the other end of the spectrum, there are ongoing discussions regarding the causes of most minute and subtle sonic alterations. For example, people listen and compare the affects of different speaker wires, AC power conditioners, or the types of capacitor in some given circuit. Many sonic alterations are so minute or even subjective that they beg for objective double blind listening tests. This >PiC< is a new concept. Few people have experienced listening to the DA11. So where does it belong to in terms of impact on audibility? The >PiC< does not require double blind listening. There are two cases when you cannot hear the stereo image adjustments: 1. The music source is playing mono (not stereo) 2. The listener is significantly hearing impaired in one or two ears. In other words, the >PiC< is a process that solves real issues in a real way. You will hear it clearly. It is not yet another box attempting to artificially force a sense of space into music recoding that lacks space. The >PiC< image width correction enables the listener to alter the amount of stereo width without added sonic alterations (such as added distortions, noise compression). The DA11 offers 6 image settings for each channel. The settings are: +2 for widest +1 for wide 0 for normal -1 for narrow -2 for narrower -3 for narrowest Of course, the optimal stereo adjustments differ between individual setups. For most music recordings, headphone use or speakers that are set too far apart call for narrower stereo image settings. The wider image settings are best suited for speakers that are too close together, and to a listener located too far away from the speakers. Also, wider image settings work best for many binaural recordings which as a rule are better suited for headphones. At times, the music itself also plays a role - reflecting the artistic tastes of different mastering engineers. The DA11 image control is quick and easy. Using front panel controls or a dedicated low cost universal remote control, adjusting the image in real time is as effortless as a volume adjustment. http://www.lavryengineering.com