{"product_id":"vintage-1976-marshall-jmp-1987-mk-ii-50-watt-lead-guitar-amplifier-head-cottonwood-music-emporium","title":"Vintage 1976 Marshall JMP 1987 MK II 50-Watt Lead Guitar Amplifier Head | Cottonwood Music Emporium","description":"\u003cp\u003eWelcome to Cottonwood Music Emporium. We are incredibly proud to offer this legendary piece of rock history: a vintage 1976 Marshall JMP 1987 MK II 50-Watt Lead amplifier head. Revered as the 50-watt sibling to the iconic Super Lead, this non-master volume powerhouse delivers the authentic, roaring British crunch and brilliant, glassy cleans that defined an entire era of rock and roll.\u003c\/p\u003e\n\u003cp\u003eInside the chassis, this amplifier is incredibly clean and retains its highly sought-after original factory components. It features a beautifully preserved printed circuit board labeled \u003cb\u003eMarshall ST1 iss. 202\u003c\/b\u003e. The heart of its massive tone comes from its original iron, proudly displaying the classic \u003cb\u003e784-139\u003c\/b\u003e output transformer and \u003cb\u003e1202 164\u003c\/b\u003e power transformer.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLegendary 2-channel, 4-input design allowing players to jump channels for blended voicings.\u003c\/li\u003e\n\u003cli\u003eOriginal internal factory printed circuit board stamped with Marshall ST1 iss. 202.\u003c\/li\u003e\n\u003cli\u003eOriginal output transformer bearing the factory 784-139 stamp.\u003c\/li\u003e\n\u003cli\u003eOriginal power transformer bearing the factory 1202 164 stamp.\u003c\/li\u003e\n\u003cli\u003eCurrently loaded with Groove Tubes EL34 power tubes and retains vintage blue Daly filter capacitors.\u003c\/li\u003e\n\u003cli\u003eIncludes the original vinyl protective cover (the previous owner's name was painted on the cover but has been neatly sprayed over in black).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eProduct Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e JMP 1987 MK II (50-Watt Lead)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSerial Number:\u003c\/b\u003e S\/A 5783H\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufactured Date:\u003c\/b\u003e 1976 (Inspection tag dated 19 8 76)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufactured Location:\u003c\/b\u003e England\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eCondition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis vintage amplifier is in \u003cb\u003eExcellent\u003c\/b\u003e condition. Both cosmetically and electronically, it has been remarkably well-preserved for a 1976 build. It exhibits only light, expected wear typical of careful use and remains a robust, stage-ready, and studio-grade vintage piece.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe 4x12 Marshall cabinet is not included in this listing. If you're interested in the cabinet please reach out. It may be available for local pickup.\u003c\/p\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":50584788730111,"sku":"Marshall JMP 1987 -karasaka10012026","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1110\/3544\/files\/medium_023e4ba1-8759-4dbf-9a13-9d1a645af1cf.jpg?v=1790888266","url":"https:\/\/www.cottonwoodmusicemporium.com\/products\/vintage-1976-marshall-jmp-1987-mk-ii-50-watt-lead-guitar-amplifier-head-cottonwood-music-emporium","provider":"Cottonwood Music Emporium","version":"1.0","type":"link"}