5
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 rear 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 set 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
2.3 SETTING TONES
The single channel preamp found in your ‘64 Super is designed to provide a wide variety of sounds, from clean to
mean and everything in between. Begin by setting the Volume knob to 9:00. Turning up the Volume will increase the
gain of the preamp.
Plugging into the first input, labeled “Hi”, provides maximum input gain. The “Lo” input provides slightly less input
stage gain, and therefore a bit more headroom.
Supro amplifiers are some of the most dynamically sensitive guitar amplifiers ever designed. The player is able to
access a myriad of sounds within this amplifier by turning the volume(s) 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
.
