Owner's Manual

E-9
English
Switching on
The POWER button switches the unit on and o.
The power light (next to the ‘POWER / STANDBY’ text)
indicates the state of the amplier: if it changes from
red to orange then green if mains power is connected
and the unit is switched on.
P429 operation
POWER
POWER / STANDBY
3/4 MODE
ST/DM/BR
TRIM
2 1
TRIM
4 3
1/2 MODE
ST/DM/BR
IN4
OUT4
IN3
OUT3
IN2
OUT2
IN1
OUT1
5V 100mA
USB
4–16 OHMS. CLASS 2 WIRING
CH3 CH2 CH1
Mode switches
These switches allow the two pair of amplication
channels to be independently congured in three
dierent modes.
Level trim
These trims allow each channel output level to be
adjusted in order to compensate for dierences in
speaker output levels due to their position within the
listening environment.
In normal use, these trims should all be set to the fully
clockwise position.
3/4 MODE
ST/DM/BR
TRIM
2 1
TRIM
4 3
1/2 MODE
ST/DM/BR
IN4
OUT4
IN3
OUT3
IN2
OUT2
IN1
OUT1
5V 100mA
USB
4–16 OHMS. CLASS 2 WIRING
CH3 CH2 CH1
< In ST (Stereo) mode, each output channel is fed
from its respective input and would be used to
drive four independent speakers. As an example,
please refer to “Single wiring” on page E-10
< In DM (Dual Mono) mode, CH1 and CH2 are fed
from the CH1 input only, while CH2 is not used.
Similarly, CH3 and CH4 are fed from CH3 only,
while CH4 is not used. This would be used to
drive two independent speakers in a bi-amped
conguration. An example of this is shown in
“Dual mono / Bi-Amping” on page E-11
< In BR (Bridged) mode, CH1 and CH2 are bridged
together and are fed from CH1 only, while CH2
is not used. Similarly, CH3 and CH4 are bridged
together and are fed from CH3 only, while CH4
is not used. This would be used to drive two
independent speakers in a bridged mono setup.
An example of this is shown in “Bridged mode”
on page E-12