Rane AD 22D User Manual
DATA SHEET
BYPASS1STORE
RECALL
CHAN
MILLISECONDS
MODE
MEMORY
2 A B
DISPLAY
21
1 ms
10 μs
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
General Description
e 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. e 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.
e 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.
e ambient temperature of the room may be manually entered
in degrees Celsius or Fahrenheit. is 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 Dis-
AD 22d
AUDIO DELAY
play Mode buttons. e 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. e
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.
e 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.
Features
• 1.50 to 999.99 ms Delay Range per Channel
• Two Independent Channels (2 In - 2 Out)
• Independent 10µs and 1ms 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 100/120/230 VAC Remote Power Supplies
Data Sheet-1
AD 22d
AUDIO DELAY
Features and Specifications
Parameter Specication Limit Units Conditions/Comments
Delay Range 1.50 to 999.99 1% msec
..........Increment Size 0.01 and 1.00 msec Independently controllable
..........Readout 5 digit LED
Propagation Delay 1.50 1% msec
Sampling Frequency 50k Hz
Data Conversion 24 bit
Input & Output Connectors XLR
Inputs: Type Active balanced
..........Impedance 25k 1% Ω balanced
..........Headroom 16 above Sensitivity setting 2 dB 20 Hz - 8 kHz
..........Max Level 20 dBu 1 kHz with Sensitivity at +4 dBu
Outputs: Type Active balanced cross-coupled
..........Impedance 200 1% Ω balanced
..........Max Level 20 (>2k ohm); 18 (>600 ohm) dBu 1 kHz with Sensitivity at +4 dBu
Overall System Gain 0 ±1 dB
Output Relays Yes Auto-bypass with power loss
LED resholds: Clip 4 before converter overload 1 dB 1 kHz
..........Signal Present -34 below Clip LED 1 dB 1 kHz
Frequency Response 20 Hz - 22 kHz +0/-0.5 dB +4 dBu, Sens@+4
THD + Noise 0.05 .01 % +4 dBu, Sens@+4, 20-20k, 30k Hz BW
Signal-to-Noise Ratio 85 2 dB +4 dBu, Sens@+4, 20 Hz - 20 kHz
Dynamic Range 101 2 dB +4 dBu, Sens@+4, 20-20k, A-weighted
Crosstalk >90 dB 20-20 kHz, +4 dBu, Sens @ +4 dBu
Unit: Agency Listing
..........120 VAC model Class 2 Equipment National Electrical Code
UL & CSA Exempt Class 2 equipment
..........230 VAC model Certified FCC Part 15J Class B Device
Power Supply: Agency Listing
..........120 VAC model UL File no. E88261
CSA File no. LR58948
..........230 VAC model CE-EMC EMC directive 89/336/EEC
CE-Safety LV directive 73/23/EEC
Power Supply Requirement 18 VAC w/center tap 0.1 Vrms Rane RS 1
..........Maximum Current 650 mA RMS current from remote supply
Unit: Construction All Steel
..........Size 1.75"H x 19"W x 8.5"D (1U) (4.4 cm x 48.3 cm x 21.6 cm)
..........Weight 6 lb (w/o power supply) (2.7 kg)
Shipping: Size 4.25" x 20.3" x 13.75" (11 cm x 52 cm x 35 cm)
.........Weight 10 lb (4.5 kg)
Note: 0 dBu=0.775 Vrms
Data Sheet-2
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