5
2.3 SETTING TONES
The preamp found in your Keeley Custom 10 is designed to provide a variety of sounds from clean to mean and
everything between. Begin by setting the volume knob to 9:00. A good starting point is to set Bass, Treb, and Master
controls to 12:00. Adjust the Bass and Treb controls accordingly to dial in the desired tone. With the master volume,
you can dial in just the right amount of gain in the preamp, and control the overall volume with the Master.
The Effects Loop Send takes the signal directly from the preamp and sends it to your pedals or other outboard gear.
The return jack accepts the signal from your pedals, and directs it to the power section of the amplifier.
Supro amps are some of the most dynamically sensitive guitar amplifiers ever designed. The player is able to access
myriad sounds within this amp by turning the amp volume up to the point of glorious overdrive and simply controlling
the strength of
the signal right from the volume knob on the guitar.
See tone maps at
suprousa.com
.
PHASE INVERTER
12AX7/ECC83
POWER TUBES
2X TUNG SOL 6V6GT
PREAMP
12AX7/ECC83
2.4 TUBES
Each Supro tube amplifier is a 100% analog, 100% tube amplifier. There are
no
solid state (transistor) devices in
any
audio signal path.
Viewed from the transformer side of the chassis:
2.5 TROUBLESHOOTING
Supro products have been designed for years of trouble-free service. There are many unique protection features to
the design. If you are having difficulties, check the following:
No sound, but pilot light is ON
Check to see that the speaker is plugged into the speaker jack (not the footswitch jack). Make sure all knobs
are turned up past zero and that the Standby switch is vset to operate. As this is a tube amplifier, the tubes take
approximately 1 minute to warm up before you will get sound. The Standby switch should be set to standby for this
warm up period.
No sound and the lights are all OFF
Unplug the power cord and check the 2.5A, 250V fuse (rear panel).
If you have any further questions, our email address is
