When was the Mesa Boogie Quad Preamp - Rhythm 2 produced?

The Mesa Boogie Quad Preamp - Rhythm 2 was produced 1987–1992.

Who famously used the Mesa Boogie Quad Preamp - Rhythm 2?

Reeves Gabrels are among the notable players associated with the Mesa Boogie Quad Preamp - Rhythm 2.

Mesa Boogie Quad Preamp - Rhythm 2 preset

Verified · 83/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Quad Preamp is Mesa/Boogie's all-valve rack preamp from the late 1980s, built as two Mark-style preamps side by side. Each channel has Volume 1, treble, bass and middle with bright and shift switches, a cascaded lead circuit with its own Lead Drive and Lead Master, and a Master, giving four sounds (Rhythm 1, Lead 1, Rhythm 2, Lead 2). Two five-band graphic EQs, a two-tank spring reverb and main outputs A and B complete it.

Years produced: 1987–1992
Made in: USA
Channels: 4

Known for: Reeves Gabrels.

Tags: american, preamp, high-gain, multi-channel.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.