{"product_id":"marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1979-black-rev-99523003","title":"Marshall JMP 2203 Mk2 Master Model Lead 100-Watt Guitar Amp Head 1979 - Black","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003eMarshall \u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eJMP 2203 \u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003e1979 Master Model 100 Watt Lead\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eFully Serviced\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eA superb original example of a \u003cb\u003e\u003cstrong\u003e1979 Marshall JMP 2203 Master Model Lead\u003c\/strong\u003e\u003c\/b\u003e, one of the most iconic high-gain amplifiers ever produced and a true milestone in Marshall's history.\u003c\/p\u003e\u003cp\u003eIntroduced in 1975, the 2203 revolutionised the Marshall lineup by introducing a genuine master volume design, giving players the ability to achieve rich valve overdrive without running the amplifier completely flat out. By \u003cb\u003e\u003cstrong\u003e1979\u003c\/strong\u003e\u003c\/b\u003e, the model had become firmly established on stages around the world, delivering the punch, clarity and reliability that made it a favourite among professional guitarists.\u003c\/p\u003e\u003cp\u003eBuilt during Marshall's celebrated late-'70s period, this UK-made head delivers everything players expect from a vintage JMP—massive headroom, aggressive midrange bite, tight low end and the unmistakable roar that has defined rock music for decades.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e\u003c\/b\u003e JMP 2203 Master Model Lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eYear:\u003c\/strong\u003e\u003c\/b\u003e 1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eSerial Number:\u003c\/strong\u003e\u003c\/b\u003e 03735L\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eInspection Sticker Date:\u003c\/strong\u003e\u003c\/b\u003e 19\/05\/1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e\u003c\/b\u003e 100 Watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eOriginal Transformers:\u003c\/strong\u003e\u003c\/b\u003e Mains, Output \u0026amp; Choke\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003ePower Valves:\u003c\/strong\u003e\u003c\/b\u003e 4 × EL34 \u003ci\u003e\u003cem\u003e- Marshall Branded\u003c\/em\u003e\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003ePreamp Valves:\u003c\/strong\u003e\u003c\/b\u003e 3 × ECC83 \/ 12AX7 - SOVTEK Russian\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eChannels:\u003c\/strong\u003e\u003c\/b\u003e Single Channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eInputs:\u003c\/strong\u003e\u003c\/b\u003e High \u0026amp; Low Sensitivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eControls:\u003c\/strong\u003e\u003c\/b\u003e Pre-Amp Volume, Master Volume, Presence, Bass, Middle \u0026amp; Treble\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eImpedance Selector:\u003c\/strong\u003e\u003c\/b\u003e 4Ω \/ 8Ω \/ 16Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e\u003c\/b\u003e UK-built PCB construction with flying leads\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eService Work\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFully inspected and serviced by Dave Wittering at Prestige Amp Servicing.\u003c\/li\u003e\n\u003cli\u003eDave is a former Marshall Senior Service Engineer with over 15 years at the Marshall factory.\u003c\/li\u003e\n\u003cli\u003eDedicated chassis earth added\u003c\/li\u003e\n\u003cli\u003eAll parts used are OEM Marshall where possible\u003c\/li\u003e\n\u003cli\u003eReady for immediate studio, rehearsal or stage use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eTone\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThe late-’70s 2203 is one of the definitive Marshall amplifiers. It combines the authority and headroom of a 100-watt Super Lead with the added flexibility of a master volume circuit, creating an amplifier that can move effortlessly from articulate classic rock to aggressive hard rock and early heavy metal.\u003c\/p\u003e\u003cp\u003eExpect tight, percussive bass response, aggressive upper mids and exceptional note definition. The amplifier remains incredibly responsive to picking dynamics and cleans up beautifully from the guitar’s volume control, while turning up the preamp delivers the rich harmonic overdrive that has made the 2203 legendary.\u003c\/p\u003e\u003cp\u003eA boost pedal in front unlocks the saturated tones that became synonymous with the New Wave of British Heavy Metal, early thrash and countless arena rock recordings.\u003c\/p\u003e\u003cp\u003eThis is the unmistakable sound of a late-’70s Marshall at its absolute best.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003ePresented in very good vintage condition with honest cosmetic wear consistent with nearly 50 years of use. The amplifier retains plenty of original character and has clearly been enjoyed throughout its life.\u003c\/p\u003e\u003cp\u003ePlease study the photographs carefully as they form part of the description.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eWorldwide Shipping\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eAll of our amplifiers are shipped in custom Overdrive Guitars boxes with extensive internal protection. We regularly ship vintage Marshall amplifiers worldwide using UPS and DHL, with fully tracked and insured delivery. Valves are carefully packed and secured for transport.\u003c\/p\u003e\u003cp\u003eWe are proud to be an Authorised Marshall Retailer and Marshall specialists, with a dedicated showroom where you can experience and test our amplifiers in person by appointment.\u003c\/p\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":53664680378704,"sku":"0245","price":2299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/0919\/5856\/files\/14f82482-e7b3-4ca6-808d-ecdf26a8c0da.jpg?v=1789895452","url":"https:\/\/overdriveguitars.com\/products\/marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1979-black-rev-99523003","provider":"Overdrive Guitars","version":"1.0","type":"link"}