Camco Vortex Series - Mono-Bridge Operation and Wiring

3 INSTALLATION
+
+
ch A(C)
ch B(D)
Input
Channel A(C)
Input
Channel B(D)
+
Z ≥ 4 Ω
Z ≥ 4 Ω
+
+
ch A(C)
ch B(D)
Input
Channel A(C)
Z
res
≥ 2 Ω
USER MANUAL
VORTEX 3 QUADRO
P.12
USER MANUAL
VORTEX 3 QUADRO
P.13
3.7 Mode Selectors
The switches AB MODE and CD MODE on the rear panel change the operating
mode of the appropriate amplier (A/B , C/D). Moving one of these switches will
shutdown the VORTEX 3 QUADRO and restart it in the new operating mode.
3.8 Basic Concepts
The VORTEX 3 QUADRO consists of two Stereo ampliers A/B and C/D. Both
of them are capable to work independently in Stereo, Mono-Bridge or Parallel-
Mono. Following you will nd a description about these modes for amplier A/B
(in parenthesis the appropriate channels of amplier C/D).
3.8.1 Stereo Operation
Two fully independent amplier channels (normal operating mode).
3.8.2 Parallel-Mono Operation
Parallel operation of the two channels together.
The output terminals of the two channels are congured in parallel using an
internal relay. The (single) load is connected either to the output of channel A(C)
or to that of channel B(D) (as if in stereo). While the total output of the amplier
remains the same and the output voltage level is also the same as in stereo oper-
ation, the minimum impedance that can be connected is reduced by half due to
the fact that current capability is doubled. Only Channel A(C)-Input is active.
NOTE: For Parallel-Mono Operation, to prevent damage of one SPEAKON
connector and to reduce loss of power because of contact or cable re-
sistance, it is highly recommended to wire speaker loads using SPEAKON
connector with all contacts connected.