Data Sheet-4
All features & specifications subject to change without notice. DOC 103173 PN 07613 11-98
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)-355-6000 FAX (425)-347-7757 WEB http://www.rane.com
References
1. Shaw, N. “Digital Delays, Parts One, Two & Three,”
Sound & Communications
, vol. 39, nos. 3, 5 & 10, (March, May, &
October 1993).
2. Bohn, D. “Environmental Effects on the Speed of Sound,”
J. Audio Eng. Soc
., vol. 36, pp. 223-231 (April 1988).
Architectural Specifications
The digital audio delay unit shall be a single rack space,
two input, two output configuration. The delay adjustment
range shall be from 0.011 to 327.68 ms, adjustable via
increment/decrement pushbuttons, in both 10 microsecond
and 1 millisecond intervals. The method of delay shall be the
Dolby Time Link 1-bit delta-sigma encode/decode circuit.
Independent remote recall terminals shall be provided for
external recall of stored configuration memories, two per
channel. A five (5) digit LED display shall indicate delay
values in milliseconds, feet or meters as well as temperature
setting and software revision level. Bypass status, current
memory, channel, and display modes shall be indicated with
individual indicators.
A recessed rear-panel switch shall disable the front panel,
yet still allow viewing of delay values.
Independent input-output sensitivity controls shall be
included to allow calibration of the input signal for maximum
performance. The inputs and outputs shall be active balanced,
terminated with screw terminals (model AD 22) or XLR
connectors (model AD 22B). Each channel shall have
indicators for signal present and input/output clip conditions.
The unit shall provide independent, fail-safe bypass
relays requiring no power to engage. RFI filters shall also be
provided.
The unit shall have certified compliance with FCC docket
20780 Part 15J for Class A computing devices. The AD 22B
shall comply with EMCD 89/336/EEC (CE approved) [the
AD 22 unit does not meet unit CE emissions certification
requirements]. The 120 VAC model shall be powered from a
UL listed, CSA certified remote power supply, and the 230
VAC model shall be powered from a remote power supply
meeting LVD 73/23/EEC and EMCD 89/336/EEC standards.
The unit shall be constructed entirely from cold-rolled steel.
The unit shall be a Rane Corporation AD 22 or AD 22B.
AD 22 Rear Panel
AD 22 & AD 22B
AUDIO DELAYS
AD 22B Rear Panel
Note: The AD 22 is not CE Certified for emissions (it is CE safety exempt).
Note: The AD 22B is CE Certified for emissions and safety.
