Ampeg SVPCL User Manual download pdf (Page 7)

SVPCL Bass Preamp

Changing the Tubes:

Tube wear is in direct proportion to how often and how hard you play. Preamp tubes aren’t worked as hard as power

tubes and typically last longer. When a preamp tube wears out, the preamp may squeal, get noisy, lose gain and sensitiv-

ity, or just quit working. A service center can determine which tube(s) may need replacing. To get to the tubes in the SVPCL,

the top must be removed. This should be left to a qualified service person.

System Block Diagram:

INPUT

PAD

GAIN

MUTE

TRANSFORMER

BALANCED LINE

OUTPUT

PEAK

MID

MID FREQ.

MASTER

POST

PRE

BUFFER

PREAMP

OUTPUT

PREAMP

OUTPUT

GND

LIFT

TUNER

OUTPUT

ULTRA

HIGH

ULTRA LOW

BASS TREBLE

1 2 3 4 5 6 7 8

No comments

Ampeg SVPCL User Manual Page 7