SVT-4 PRO Bass Guitar Amplifier
f you are having a problem with your SVT-4 PRO, you can go to our website (www.ampeg.com)
and click on Support for service information, or call Technical Support at 1-818-575-3600
Monday – Friday during
normal business hours, Pacific Time
, to receive assistance. If you are
outside of the U.S., contact your local distributor for technical support and service.
The SVT-4 PRO is covered with sheet metal and aluminum, not unlike robots, spaceships and other
cool things. Clean with a dry lint-free cloth.
Never spray cleaning agents on the SVT-4 PRO. Avoid
abrasive cleansers which would damage the finish.
Ampeg continually develops new products and improves upon existing ones. For this reason, the specifications
and information in this manual are subject to change without notice.
“Ampeg” is a registered trademark of Yamaha Guitar Group, Inc. All other brand names mentioned are trade-
marks or registered trademarks of their respective holders and are hereby acknowledged.
Size (H x W x D) 5.6 in / 142 mm (with feet) x 19.0 in / 483 mm
(with ears) / 17.4 in / 442 mm (without ears)
x 15.5 in / 394 mm
Weight 39.5 lb / 17.9 kg (approximately)
SVT–4 PRO Technical Specifications continued
In the unlikely event that your SVT-4 PRO should malfunction, take a few minutes to
troubleshoot it before you call for service. You can save yourself time and money by doing
it yourself, and often the cure for the problem is something quite simple.
If the problem isn’t covered above, or if the steps lead you here, then contact your
Ampeg dealer for service information. Also, you should refer the amp for servicing if it
gets dropped, has liquid spilled into it, or sustains damage to its power cord.
Check bass, cables
LEDs DON'T LIGHT
Check AC outlet
NO HUM HUM
Listen for hum
POOR SOUND SOUND OK
Check amp controls, check
for signal from bass
Check amp's power
cord, circuit breaker,
Check house fusebox
or circuit breaker
Check speaker Unplug bass,
touch tip of cable
SEE BELOW SEE BELOW
NO POWEROUTLET OK
©2018 Yamaha Guitar Group Inc.
26580 Agoura Road • Calabasas, CA 91302-1921
Part No. 2038640 Rev. D 07/18