Duncan BASS 400 X 2 Owner's Manual - Page 10

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Distorted Sound

Muddy Sound

Buzzing Sound

backwards in effects loop

4) Defective effects

5) Blown speaker

6) Internal fuse blown

1) Partially shorted speaker

cable

2) Speaker impedance is

below recommended value

3) Master Volume set too

low

4) Over boosted E.Q.

settings

5) Defective or over driven

effect

6) Internal fuse blown

7) Defective speaker

8) Low battery (active

pickups)

1) E.Q. setting set too high

in lower frequency ranges

2) Speakers are wired for

Bridge mode, but

Bi-amp/Mono switch is set

on Bi-amp

1) Ground loop (in rack

mount installations)

2) Improperly wired

instrument

3) Noisy A.C. line

4) Remove effects

5) Hook up new speaker

6) Replace with ABC-10

(see diagram). If it con-

tinues to blow, call service

center

1) Replace cable

2) See manual for minimum

load

3) Set control at minimum 3

o'clock

4) Set E.Q. settings more

moderately

5) Remove effect or reduce

input sensitivity

6) Replace with ABC-10

fuse (see diagram). If it

continues to blow, call

service center

7) Replace speaker

8) Replace battery in

pickups

1) Reduce low frequency

E.Q. settings

2) Reverse switch position

to Mono

1) Reverse ground or lift

ground and reground the

rack

2) Check instrument wiring

3) Reverse polarity of

power switch