{"product_id":"marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1978-black-rev-95741526","title":"Marshall JMP 2203 Mk2 Master Model Lead 100-Watt Guitar Amp Head 1978 - Black","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003eMarshall\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cb\u003e\u003cstrong\u003eJMP 2203 - 1978 - Mk 2 Master Model 100w Lead \u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eSerial Number: SL\/A 02126K\u003c\/p\u003e\u003cp\u003eInspection Sticker Date: 08\/03\/1978 (DD\/MM\/YYYY)\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eA true heavyweight from Marshall’s golden era — this \u003cb\u003e\u003cstrong\u003e1978 JMP 2203\u003c\/strong\u003e\u003c\/b\u003e is the blueprint for high-powered British rock tone. Loud, punchy, and unapologetically aggressive, the 2203 defined the sound of late ’70s and ’80s rock and remains one of the most iconic circuits ever produced.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cb\u003e\u003cstrong\u003e100-watt Master Model Lead\u003c\/strong\u003e\u003c\/b\u003e is all about authority — massive headroom, crushing volume, and that unmistakable Marshall bite.\u003c\/p\u003e\u003cp\u003eWith its cascaded gain stage, the 2203 delivers everything from tight, articulate cleans to \u003cb\u003e\u003cstrong\u003ethick, saturated overdrive\u003c\/strong\u003e\u003c\/b\u003e, all with incredible clarity and note separation.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eCompared to its 50-watt counterpart (2204), the 2203 offers:\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMore \u003cb\u003e\u003cstrong\u003eheadroom and low-end depth\u003c\/strong\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eA firmer, more percussive response\u003c\/li\u003e\n\u003cli\u003eGreater stage presence and punch\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis is the amp that stays clean longer — but when it goes, it delivers that \u003cb\u003e\u003cstrong\u003ehuge, chest-hitting drive\u003c\/strong\u003e\u003c\/b\u003e that defined a generation.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003ePlug into a proper 4x12 and you’re straight into classic hard rock territory.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThis example remains \u003cb\u003e\u003cstrong\u003eunmodded\u003c\/strong\u003e\u003c\/b\u003e, retaining its original circuit integrity and character.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFully tested and in excellent working order\u003c\/li\u003e\n\u003cli\u003eJust Serviced - Valves Replaced\u003c\/li\u003e\n\u003cli\u003eSounding exactly as a great JMP should\u003c\/li\u003e\n\u003cli\u003eTight low end, aggressive mids, and that unmistakable upper-mid bite\u003c\/li\u003e\n\u003cli\u003eAll original head shell box\/tolex, handle, feet and badge\u003c\/li\u003e\n\u003cli\u003eSome age related wear and tear but generally very good\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA proper player’s amp with all the attitude you’d expect from this era.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100-watt all-valve head\u003c\/li\u003e\n\u003cli\u003eVertical input JMP era\u003c\/li\u003e\n\u003cli\u003eEL34 power section - Marshall branded TUNG-SOL made in Russia (VLVE-00104)\u003c\/li\u003e\n\u003cli\u003eECC83 Pre-amps - V1 - Marshall Red label, V2 \u0026amp; V3 - Mullard\u003c\/li\u003e\n\u003cli\u003eOriginal Dagnall mains transformer (T4074)\u003c\/li\u003e\n\u003cli\u003eOriginal Dagnall output transformer (C2668)\u003c\/li\u003e\n\u003cli\u003eOriginal Dagnall choke (C2542)\u003c\/li\u003e\n\u003cli\u003eCascaded gain stage for classic Marshall crunch\u003c\/li\u003e\n\u003cli\u003eFull control set: Presence, Bass, Middle, Treble, Master Volume, Preamp Gain\u003c\/li\u003e\n\u003cli\u003eUK-built during one of Marshall’s most revered periods\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003eMains voltage selector - 110v, 120v \u0026amp; 240v - so can be used worldwide.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cb\u003e\u003cstrong\u003eWorldwide Shipping Available\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eAll of our heads are shipped in custom made Overdrive boxes with extra protection inside. We usually use UPS for international shipments. We have lots of experience shipping Marshall items worldwide and ship to North America and Europe on a weekly basis.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eWe are proud to be an \u003cb\u003e\u003cstrong\u003eAuthorised Marshall Retailer\u003c\/strong\u003e\u003c\/b\u003e, with shipping available across the UK and all of Europe for new gear and worldwide shipping for our used items. We also have a dedicated showroom where you can experience and test the amps in person.\u003c\/p\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":53664679199056,"sku":"0176","price":2350.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/0919\/5856\/files\/722f9393-0156-45fb-8376-d565bf7a4133.jpg?v=1789895430","url":"https:\/\/overdriveguitars.com\/products\/marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1978-black-rev-95741526","provider":"Overdrive Guitars","version":"1.0","type":"link"}