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Marshall 1992 Super Bass Back 1971

Marshall 1992 Super Bass Back 1971

Serial Number: SB/A12720

Description

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SKU: U4967578901

Description

The following specs were carefully collected and recorded by a skilled technician. For a more detailed description and questions regarding sound, feel, or cosmetic condition, please call to speak to one of our experts.

Summary

Head/Combo/Cabinet: Heads

Head/Combo/Cabinet: Tube Amp

Wattage Range: 100-199 Watts

Power Tubes: EL34 / 6CA7 / KT77

Tube Details: 12AX7 (3), EL34 (4)

Amp Condition: This amplifier is in good condition with wear consistent with age and use. The Covering is worn and torn, especially on the bottom front lip of the cabinet. The faceplates are scratched. The hardware has a present patina.

Modifications/Repairs: The output transformer has been rewound and the power transformer has been replaced with a Mercury Magnetics transformer that creates the correct voltage and current levels for this year of the circuit. New filter caps and bias caps have been installed. The impedance selector has been replaced, and an IEC power connector has been installed. A master volume has been added in an existing speaker jack hole. This model was a USA import model with four speaker jacks, two have been removed. The polarity switch has been disconnected. One power tube socket has been replaced. Resistors have been replaced.

Serial #: SB/A12720

Amp Details: The amplifier retains its original output transformer, choke, pots, and mustard coupling caps. The inspection tag is dated April 1st, 1971. The original power transformer is included.