Important
On CA22 & CA23 use either the low level or high
level input, do not use both at same time.
Low level input
Use a pair of shielded stereo audio cables with RCA
type jack. Most trunk-mount
amplifiers need a 20 feet
RCA cable ( appr 5 – 6 me-
ters). Most under the seat
installations require 12 feet
( 2 – 3 meters) RCA cables.
Avoid placing the RCA cable
close to speaker cables,
power cables and remote
control cable. Connect to input socket A/B. CA41
and CA51 are also equipped with separate inputs
for channel C/D. CA31 & CA 51 has also a separate
input for the mono sub channel.
High Level Input
Connect left and right speaker wires coming from
the car stereo to the high level input as shown. You
must connect both plus and minus as the inputs
are balanced, connecting plus only gives lower level
and bad sound quality. By changing the polarity of
plus and minus, you can change the phase.
CA 22, CA23 & CA31
Hi level input
plug on amp.
CA31
On CA31 the high level signal is fed internally to
channel C when using high level input.
Automatic turn on when using high level input.
With the Hi/Low input swich set to Hi, the amplifier
turns on automatically on high input. You dont need
to connect a separate remote wire from your head
unit.
Input and controls
Input Wiring
Inputs may be low level from the RCA output of the
car stereo or high level from the car stereo speaker
output. Low level = RCA is to prefer for the best sound
quality.
CA41
The CA41 four channel amplifier is connected
likewise, however we have four channels.
You can feed two channels from RCA and two
channels using high level input from rear speaker
cables.
Hi level input plug on amp for CH A/B.
Hi level input plug on amp for CH C/D.
5
RCA Output
Use RCA Outputs to
connect additional
amplifiers (not available on
CA31 & CA51).
Input Output
A
A
B
B
Parallel input on CA 31, CA41 & CA51
On CA41 the PCD position
internally connects the A/B and C/
D inputs.
On CA31 & CA51 the PC (PE)
position internally connects the A/
B (C/D) input with the input for
channel C (E).
In OFF-position you must use dual
signal cables or Y-splits.
CA51
The CA51 five channel amplifier is connected
likewise, however only Channels A, B, C and D can
be fed with high input. The signal is then connected
internally to channel E.
High Input
(C/D Ch)
Violet: C ch.+
Violet/Black: C ch.-
Green/Black: D ch.-
Green: D ch.+
CA22, 23, 31, 41 & 51
Parallel Input CA31
Off PC
Parallel Input CA41
Off PCD
Parallel Input CA51
Off PE
High Input
(A/B Ch)
White: A ch.+
White/Black: A ch.-
Grey/Black: B ch.-
Grey: B ch.+
High Input
(C/D Ch)
White: A ch.+
White/Black: A ch.-
Grey/Black: B ch.-
Grey: B ch.+
