4. In stand-alone volume control systems using the 2958 or 2959, plug the audio source into the Bus Input
jacks and plug the input of an amplifier or powered speakers, if present, into the Bus Output jacks. To power
the volume control module, plug a 805-021 Power Pack into one of the System Bus ports.
5. (2959 only) Plug from one to eight pairs of headphones into the
headphone jacks.
6. Set the DIP switches to activate various options according to
the following table:
Label
Setup
BUS
Turn ON to activate SilenTouch
™
muting in DirectSelect
™
switching systems
TO
Turn ON to automatically return
to nominal -20 dB default volume
after 2 minute timeout
U/D
Turn ON to use up/down
volume control buttons instead of
rotary encoder knob
GND
Turn ON or OFF as needed to
eliminate ground noise
Contact your Audio Authority Account Representative if you
want to use up/down volume buttons instead of the rotary
encoder.
Operation
The 2958/59 volume control has a volume range of about 30 dB.
Turning the volume control knob or pushing the Up or Down
buttons, as the case may be, raises or lowers the volume from the
current value.
With the TO (Time Out) switch turned OFF, the volume control “wakes up” at full volume level when power
is applied and remains indefinitely at the last level it was set to. With the TO switch turned ON, the volume
control wakes up at the -20 dB timeout level and also returns to the timeout level after the volume knob or
buttons and the DirectSelect
™
switching system have been inactive for two minutes.
If you encounter difficulty or have a question that was not answered by these instructions, please call Audio
Authority Technical Service at 800-322-8246.
752-261
3/01
S
9
AUDIO AUTHORITY
SYSTEM
BUS
295
MADE IN U.S.A. BY
BUS OUT
BUS IN
RIGHT
LEFT
BUS
TO
U/D
GND
ON
SPEAKER
HEADPHONES
Sub-board
805-021
Power
Pack
#1 - 8
Headphones
Source (CD Player)
Dip
Switches
2959 Volume Control/
Headphone module
Output
Jack
BUS
TO
U/D
GND
ON
“TO” Dip
Switch in the
ON position
2048 Mercer Road, Lexington, Kentucky 40511-1071
Phone: 859-233-4599 • Fax: 859-233-4510
Customer Toll-Free USA & Canada: 800-322-8346
Website: http://www.audioauthority.com