{"product_id":"marshall-jmp-1-valve-midi-pre-amp","title":"Marshall JMP-1 Valve Midi Pre-amp","description":"\u003cp\u003eThe Marshall JMP-1 is a legendary rackmount valve preamp that defined the sound of the early ’90s. Released in 1992, this 1993-built unit delivers authentic Marshall tube tone in a versatile 1U rack format, making it a favorite of touring pros and studio players alike.This JMP-1 rack unit pre amp is in very good condition with just a few surface scratches from being mounted and has just benefited from a full check over and service.\u003c\/p\u003e\n\u003cp\u003ePowered by two ECC83\/12AX7 valves, the JMP-1 offers four programmable channels—Clean 1, Clean 2, OD1, and OD2—covering everything from sparkling cleans to classic crunch to saturated high-gain lead tones. With 100 user presets, full MIDI control, and onboard speaker-emulated outputs, it’s equally at home in a rack rig, recording setup, or live performance.\u003c\/p\u003e\n\u003cp\u003eBuilt during the golden era of Marshall rack gear, the JMP-1 combines analog warmth with digital flexibility, giving players a wide tonal palette without sacrificing the unmistakable Marshall character.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarshall JMP-1 valve MIDI preamp (1U rackmount)\u003c\/li\u003e\n\u003cli\u003e2 × ECC83\/12AX7 valves for authentic tube tone\u003c\/li\u003e\n\u003cli\u003e4 programmable channels: Clean 1, Clean 2, OD1, OD2\u003c\/li\u003e\n\u003cli\u003e100 user presets with full MIDI control\u003c\/li\u003e\n\u003cli\u003eSpeaker-emulated outputs for direct recording or PA use\u003c\/li\u003e\n\u003cli\u003eClassic ’90s Marshall build quality and reliabili\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":56969386492229,"sku":null,"price":520.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5082\/7161\/files\/20260124_144738.jpg?v=1769264932","url":"https:\/\/www.tonefestguitargallery.com\/products\/marshall-jmp-1-valve-midi-pre-amp","provider":"Tonefest Guitar Gallery","version":"1.0","type":"link"}