Up for sale is a legendary 1980s Mesa Boogie Quad Preamp rackmount preamplifier in good condition.

​If you are looking for the quintessential 80s rock and metal rack tone, this is the Holy Grail. The Quad Preamp essentially packs two distinct Mesa circuits into a single unit: Channel 1 delivers the pristine cleans and singing leads of the famous Mark IIC+, while Channel 2 gives you the aggressive, tight crunch and gain structure of the Mark III. Coupled with dual 5-band graphic EQs and real spring reverb, the tonal flexibility is unmatched.

​Condition & Maintenance: ​Fully Serviced: Recently inspected and serviced by a professional tech. ​Fresh Tubes: Retubed with brand-new preamp valves, tested and biased for optimal headroom and gain. ​Cosmetic Condition: Good vintage condition. Shows light, normal cosmetic wear consistent with rack mounting and age, but all faceplate lettering, switches, and knobs are clean and fully functional.

No FU-2 Footswitch

​Note: The unit is fully MIDI-controllable and can also be switched via standard external switching jacks if the original footswitch is not included.

​Key Features: ​8 x 12AX7 / ECC83 preamp valve architecture. ​Dual channel operation with independently switchable Rhythm/Lead modes (4 distinct modes total). ​Dual classic 5-Band Graphic EQs (assignable or bypassable). ​Built-in stereo analog spring reverb. ​Dual stereo outputs with dedicated output level controls.

Please ask for more photos or info

Marked as local pickup. Happy to discuss dropping off or meeting somewhere

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Listeda month ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Quad Preamp with FU-2A Footswitch
Finish
  • Black
Categories
Year
  • 1980s
Made In
  • United States
Number of Inputs
  • 1 Input
Number of Channels
  • 2 Channels
Electronics
  • Tube
Color Family
  • Black
Reverb
  • Spring Reverb
Pedal Format
  • Rackmount

Product safety information may be available here.

Tom's Shop

Sittingbourne, United Kingdom
Joined Reverb:2026

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