speaker connections
4 ch amp PB448X

20 owner’s manual

troubleshooting
FRONT
speakers
REAR
speakers

LR

RL

4 channel (stereo) output mode

bridged mono output mode

2ch
speakers

LR

modeswitch in
STEREOposition
modeswitch in
BRIDGEDposition
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS!
A
A