- PRM3 stereo parametric equaliser
- SM24 24dB/oct. mono subsonic filter
- PC36 360˚ phase controller
- DSC1 sub dynamic control
- VCRDK digital remote volume control kit
(VCA1D module + VCRD adjuster)
- VCA1D VCA1D module VRx - BTX2
- MAC2 forced air modulated cooling system
(2 fans with spacers to put into Terminals and Raccords, plus TFC control module)
- BTX2 stereo balancer/preamplifier
- 5 -
VRx MODULAR EXTENSIONS:
CONTROL EXTENSIONS
WARNING!
Apply to Audison’s specialised installation centres for the installation and
configuration of modular extensions described in this section
2000
EDITION
K1 - Bal/Unbal inputs
switch.
K2 -It selects sensitivity
range of all inputs.
K3 - In Sub/Pre Out
switch. ABS sockets,
normally used for Pre
output, can be also
employed as additional
input for Sub.
K4 - Bal/Unbal switch for
PRE output. It is
possible to have a
balanced output
signal even with an
unbalanced input one.
Put K4 on B (Balanced)
only if K3 is on O (Out)
M1, M2, ..., M6 - Switches
to select the amplifier
functioning modes. M1,
M2 and M3 act on
crossover and on inputs
connection; M4, M5
and M6 act on outputs.
Please see the manual
in order to use them; it
indicates VRx6 main
functioning modes.
F1- Mono LO-PASS filter
for sub, 24dB/oct.
slope.
F2, F3, F4, F5, F6 - 12dB/oct. stereo crossover
filters. The pairs (F4, F5) and (F3, F6) form two
band-passes.
LA,LB, LC - Input sensitivity adjustment of A and
B amplifiers pairs respectively.
MA, MB, MC - Mono/Stereo switches of A, B and
C amplifiers respectively.
VRx6.420
Controls description
ON - Green led
It indicates the amplifier is on.
SAFETY - Red led
It indicates protection intervention:
excessively high temperature or
output anomalies (direct current,
short circuit or dangerously low load
impedance). Protection intervention
stops the amplifier functioning.
Switch the amplifier off; when
anomaly is eliminated, switch the
amplifier on again.
PEAK CHANNELS LA - LB - RA -
RB - Orange leds
They light up when one or more VRx
amplifiers are about to attain
distortion threshold. They are useful
to adjust inputs sensitivity.
- 64 -
Short guide
Leds
Controls under
wooden strip
Short guide
A Channels
B Channels
C Channels
Controls and functions
