Speaker to Line Level Converter Operation Instruction

6
7
Using the A0302 with the A0240
The A0302 is the perfect complement to Channel Vision’s A0240 amplifier. It
can utilize the Amp-Link connection, which provides a clean way to interrupt
the speaker-level audio from a low-power system and output 40 Watts per
channel to the speakers.
Using the input switch
This switch allows you to select which input connector you want to use to route
signals to the RCA outputs and the Amp-Link connector.
B-Speakers powered by
A0240 40Watt Amplifier
A-Speakers powered by
AB-124 keypad
Speaker-Level
input from
an amplifier
Set switch to
“SPKRS IN”
Set switch to
“SPKRS IN”
AB-124 keypad
(rear view)
Place switch in L/R mode.
Speaker level audio is
converted to line level to drive
the amp. Amplified audio is
returned to the A0302 through
the Amp-Link cable.
A0240
Class D
amplifier
pe
a
k
e
r
L
evel
O t
put
S u
e
Li
n
L
ev
el
Au
d
i
o I
npu
t
Pin 8 Power +24VDC
Pin 6 Speaker L-
Pin 1 Speaker L+
Pin 4 Power Ground
Pin 2 Audio L+
Pin 7 Speaker R-
Shield Audio Ground
Pin 3 Speaker R+
Pin 5 Audio R+
Amp-Link Pin Out
The A0302 provides a special Amp-Link connection that is intended to be used
with Channel Vision A0240 amplifier. The pin out is provided here for
reference.
JP2
SUB
/R
L
L+L-R-R+
TB1
L+
L
i
n
R i
n
Gnd
Gnd
2
4V
Set switch to
“L/R IN”
Connect as shown.
Note: The Left and Right line-level
input share a ground connection.
Line-Level
input
(not amplified)
JP2
UB RS
L/
L+L-R-R+
TB1
L+
L
i
n
R
in
G
n
d
G
n
d
24
V