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At VVT Amps every amp is thoroughly tested and adjusted for optimal tone. So, in normal operating
environments the internal tone stack should need no adjustment. However, we understand there are certain
circumstances where tone shaping is necessary. If so, please read the following instructions very carefully so
as to not damage the amplifier or more importantly yourself.
WARNING!
- Please Read this Information Carefully:
Tube amplifiers use
POTENTIALLY FATAL HIGH VOLTAGE AND CURRENT
. If you are not familiar with
high voltage circuits,
PLEASE DO NOT RISK YOUR LIFE BY ATTEMPTING THIS ADJUSTMENT
. If you
are in any doubt as to your ability to complete this adjustment, please contact a qualified technician.
1. Place the amplifier on its side on a padded surface.
2. Remove the OD Tone Stack access cover on the bottom of the cabinet.
3. Use a flashlight or other lighting to locate the OD Tone Stack in the access port.
Before adjusting the OD tone
Make sure the amp is set with
the overdrive as well as in boost mode engaged, tweak the stack to your desired tone, making sure there is
no high pitched squealing or oscillation (We put the OD Tone Stack inside of the amp for good reason.)
After finding the tone you like, replace the access cover.
You will notice three trim pots located on the circuit
board. The tone controls are from left to right: Middle,
Bass, Treble. You will need small screwdriver with an
insulated handle
. PLEASE NOTICE NOT TO TOUCH
ANY OTHER PART OF THE AMPLIFIER WHILE IT
IS ON OR OFF OTHER THAN THE ACTUAL TRIM
POTS THEMSELVES. THERE ARE LETHAL
VOLTAGES ON OTHER PARTS OF THE BOARD
THAT CAN KILL YOU.
If you have any doubt as to
performing this adjustment, contact a qualified technician.
