6
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 amp:
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
support@suprousa.com.
12AX7
PREAMP
12AX7
PREAMP
12AX7
PHASE
INVERTER
6973
POWER
TUBES
12AX7
TREMOLO
6973
3. SUPRO LIMITED WARRANTY
Your new Supro product is warranted to be free from defects in materials and workmanship for 1 year from the original
date of purchase. If the product is registered at http://suprousa.com/warranty, coverage is extended to two years.
Tubes and speakers are covered for 90 days. Warranty applies only to the original retail purchaser of a registered
Supro product, subject to the limitations contained in this warranty.
THIS WARRANTY IS EXTENDED TO THE ORIGINAL RETAIL PURCHASER OF SUPRO PRODUCTS BOUGHT ON OR
AFTER JANUARY 1, 2020 ONLY AND MAY NOT BE TRANSFERRED OR ASSIGNED TO SUBSEQUENT OWNERS. IN
ORDER TO VALIDATE YOUR WARRANTY, AND AS A CONDITION PRECEDENT TO WARRANTY COVERAGE HEREUNDER,
YOU MUST REGISTER YOUR PRODUCT WITHIN SIXTY (60) DAYS FOLLOWING THE ORIGINAL DATE OF PURCHASE.
YOUR PROOF OF PURCHASE OR SALES RECEIPT MUST ACCOMPANY ALL REQUESTS FOR WARRANTY COVERAGE—
YOU MAY SUBMIT YOUR RECEIPT ON THE REGISTRATION FORM. IF YOU DO NOT REGISTER THE PRODUCT WITHIN
60 DAYS OF PURCHASE, YOUR PRODUCT WILL NOT BE SERVICED UNDER WARRANTY.
If your Supro product is destroyed, lost or damaged beyond repair while in the possession of Supro for repair, Supro will
replace that product with one of the same or most similar style of a value not in excess of the original purchase price
of your product. Any insurance covering the product, including but not limited to collector’s value insurance, must be
carried by you at your expense.
