CPA240 Configurable Power Amplifier
Page 16 of 35
21031 CPA240 manual V1.31.doc
4 Amplifier Configuration
4.1 Internal Selector View
16
15
Amplifier Link Gain Trim
Amplifier Link
(remove for Slave Amp)
Channel 1.
Channel 2.
CH1 +10dB
CH2 +10dB
1
Amplifier
Channel
Send
Chain
I/P
Master
CH2
Slave
Selector Cable (4 off)
4
3
2
Channel 3.
CH3 +10dB
Channel 4.
CH4 +10dB
M
ai
ns
Always Wakeup
Not Fitted
M
on
ito
r E
na
bl
e
B
at
te
ry
C
ha
rg
er
D800 Control Card
Slave Master
D804 Connector Card
3
10
12
14
4
6
8
9
13 11
5
7
2
Audio Bus
Channel
1
Slave
Master
CH3
CH2
SW2
D801 Power Block
Slave Master
CH4
Master
Slave
Slave Master
CH3
SW3
CH4
SW4
Fuse CH3
Fuse CH4
Fuse CH1
Fuse CH2
Output Stage Fusing
4.2 Master Slave
The CPA240 amplifier is equipped with four individual 60-Watt channels.
Setting of the ‘master/slave’ selectors allows the channels to be paralleled, providing 60, 120,
180 & 240 Watt configurations.
There are two ‘master/slave’ selectors per channel they are located on the Power Block (D801)
and rear connector card (D804). ‘CH2’ selects channel 2 as a master or slave etc.
Note: Both switches on a channel MUST be set to the same position.
When wiring to a paralleled amplifier the input and output signal cabling is to be connected to
the master channel only.
4.2.1 Master Slave Configuration Examples
4 x 60 Watt.
•
Set all Master/Slave switches to ‘master’ (factory setting).
•
Wire/configure channel 1 input/output signals to amplifier channel 1 etc.
•
Wire/configure channel 2 input/output signals to amplifier channel 2 etc
•
Wire/configure channel 3 input/output signals to amplifier channel 3 etc
•
Wire/configure channel 4 input/output signals to amplifier channel 4 etc
2 x 120 Watt.
•
First amplifier group: Set CH2 M/S switch to ‘slave’ (this parallels channel 2 to channel 1
master).
