29
12 Channel, BridgeaBle Power amPlifiers
SpeakerCraft – 1-800-472-5555 – 1-707-778-5733
TROUBLE-ShOOTING CONTINUEd
For ease
of use, the
Configuration
Worksheet can
be enlarged on
a photocopier.
BUS INS & OUTS
CONNECTED TO
CH# BRIDGED DIP
INPUT SOURCE
SPEAKER
MODE SETTINGS
IN USE
SPECIAL
Left Main Bus
Right Main Bus
Cascade Output
Constant
Audio Sense
Voltage Trigger
Control Output
1
2
3
4
5
6
7
8
9
10
11
12
Symptom
possible Causes and Test procedure
Sound is distorted
on one or all of the
channels at normal
volumes
busmatrix™ DiP switches are not in the correct positions.
check your configuration worksheet and verify all settings.
normal volume cannot
be reached
one of the internal amplifier fuses is blown. (return the amplifier to your dealer for service).
bass sound is weak
and the stereo image is
“phasey” sounding in
one room
check that the bridging switch is “off”. if two adjacent channels are connected normally but
the bridging switch is set to the “bridged” position, the two speakers will play out of phase
with each other.
The loudspeakers are wired out of phase. reverse the connections at the back of one speaker.
a speaker connected
to a bridged pair of
amplifier channels
sounds weak
check that the bridging switch is “on”.
