Data Sheet-
General Description
The Rane AD 22d is a fully balanced two Input, two Output
audio alignment Delay providing a range of 1.50 to 999.99 mil-
liseconds on each Output. The Delay of each Output is indepen-
dently adjustable in 10 microsecond and 1 millisecond incre-
ments. 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 ac-
curately 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 Dis-
play 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 nom4 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.
Features
• .50 to 999.99 ms Delay Range per Channel
• Two Independent Channels (2 In - 2 Out)
• Independent 0µs and ms Step Sizes
• Independent Remote Memory Recall
• Two EEPROM Memories per Channel (No Batteries)
• Front Panel Lockout Switch on Rear
• Delay Display in Milliseconds, Feet or Meters
• Fail-Safe Bypass for Each Channel
• Active Balanced XLR Inputs & Outputs
• UL/CSA/CE and 00/20/230 VAC Remote Power Supplies
AD 22d
AUDIO DELAY
DATA SHEET
BYPASS
1
STORE RECALL CHAN
MILLISECONDS
MODE
MEMORY
2
A B
DISPLAY
2
1
1 ms
10
μ
s
1
2
SIGNAL
CLIP
dBu
SIGNAL
SENSITIVITY
SENSITIVITY
CLIP
dBu
0
-16
+4
-20
-4
-12
-8
0
-16
+4
-20
-4
-12
-8
AD 22d
METERS
FEET
AUDIO DELAY
-10 dBV
-10 dBV
HOLD TO SET TEMP
COARSE
FINE
°C
°F
260.45
