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The Rane AD 22d is a fully balanced two Input, two Output audio alignment Delay providing a range of 1.50 to 999.99 milliseconds on each Output. The Delay of each Output is independently adjustable in 10 microsecond and 1 millisecond increments. 24-bit audio converters provide excellent sound quality.
Each Output has two nonvolatile Memories (no batteries required), A and B, for easy access to previously stored Delay values. Remote Recall screw terminals on the rear accept external configuration switches, permitting independent remote recall of the Memories.
The AD 22d features XLR Inputs and Outputs, and is CE certified for emissions. Housed in a single rack space, the unit can operate as two independent channels (dual mono), or as a stereo pair (edit both channels simultaneously).
Delay values can be displayed in milliseconds, feet or meters. The ambient temperature of the room may be manually entered in degrees Celsius or Fahrenheit. This temperature is used to accurately convert distance into time.
A recessed rear panel switch is available for locking out front panel controls. In this mode, all of the front panel pushbuttons are disabled with the exception of the Channel select and Display Mode buttons. The Channel button remains active so the user may view the Delay values without risk of changing them, and the Display Mode button allows displaying the Delay values in milliseconds, feet or meters. Internal jumpers are available to enable or disable Bypass while in Front Panel Lockout mode. The default setting of these jumpers disables Bypass in Front Panel Lockout mode. Independent bypass relays provide a fail safe, hard-wired bypass in case of power loss.
The AD 22d is a unity gain device with Sensitivity controls to provide proper internal levels for the audio converters. If the input signal is nominally +4 dBu, set the Sensitivity control fully counter clockwise (+4 dBu). For those unable to touch a cable and determine its signal level, Signal present and Clip indicators provide visual acknowledgment that the Input signal is within optimal range.
Powered from a low voltage UL listed and CSA certified remote power supply (230 VAC supply meets LVD 73/23/EEC), the AD 22d is exempt from safety agency requirements, and may be used in any installation mandating agency compliance.
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