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Marshall JMP-1 Valve MIDI Preamp - $900 (menlo park)
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This is the definitive rack preamp that defined the guitar tones of the 90s and early 2000s.
Powered by two ECC83 (12AX7) vacuum tubes, it delivers everything from crystal-clear cleans to the iconic JCM800 roar and high-gain "OD2" saturation.
Whether you’re a rack aficionado or looking for a professional-grade recording tool, the JMP-1 is widely considered the gold standard for MIDI-controllable tube tone.
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Condition
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This unit is in excellent condition. As seen in the photos:
-Aesthetics: The iconic gold faceplate is remarkably clean with very few marks.
-Display: The red LED patch/data display is bright, sharp, and fully functional.
-Hardware: The "Data" encoder wheel and "Output Level" pot are firm and responsive (no skipping or wobble).
-Environment: Kept in a smoke-free studio and handled with care.
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Features:
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-Real Tube Path: Dual ECC83 valves provide authentic Marshall analog warmth and harmonic richness.
-4 Channels: Clean 1, Clean 2, OD1 (Classic Crunch), and OD2 (High Gain).
-Programmable EQ: Store your favorite Bass, Middle, Treble, and Presence settings across 100 presets.
-Bass Shift: A dedicated "Bass Shift" circuit for modern, tight low-end response.
-Stereo FX Loop: Fully programmable effect level mapping for each preset.
-Speaker Emulated Outputs: Features the famous "Integrated Power Plant" emulation for direct recording or PA connection.
-Made in England: Authentic vintage Marshall build quality.
-Includes: Power Cable.
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Meet at the Menlo Park Police Station.