{"product_id":"marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1979-white-rev-102012664","title":"Marshall JMP 2203 Mk2 Master Model Lead 100-Watt Guitar Amp Head 1979 - White","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003eMarshall \u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eJMP 2203 Master Model 100W Lead – 1979 – White Tolex\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eA superb \u003cb\u003e\u003cstrong\u003e1979 Marshall JMP 2203 Master Model 100W Lead\u003c\/strong\u003e\u003c\/b\u003e, presented in a striking white finish and retaining its \u003cb\u003e\u003cstrong\u003eoriginal transformers and choke\u003c\/strong\u003e\u003c\/b\u003e.\u003c\/p\u003e\u003cp\u003eThe 2203 is one of the definitive Marshall circuits of the late 1970s and the amplifier that laid the foundations for the subsequent JCM800 2203. With its cascaded preamp, master volume and 100-watt EL34 output stage, it delivers the aggressive, articulate Marshall sound that became synonymous with hard rock and heavy guitar throughout the late '70s and '80s.\u003c\/p\u003e\u003cp\u003eThis example carries serial number \u003cb\u003e\u003cstrong\u003eSL\/A 07538L\u003c\/strong\u003e\u003c\/b\u003e, while the original internal inspection sticker is dated \u003cb\u003e\u003cstrong\u003e3\/10\/79\u003c\/strong\u003e\u003c\/b\u003e, firmly placing it in October 1979.\u003c\/p\u003e\u003cp\u003eThe amplifier retains its \u003cb\u003e\u003cstrong\u003eoriginal headshell\u003c\/strong\u003e\u003c\/b\u003e, which has been professionally recovered in \u003cb\u003e\u003cstrong\u003ewhite tolex\u003c\/strong\u003e\u003c\/b\u003e and fitted with a contrasting \u003cb\u003e\u003cstrong\u003eblack Marshall logo\u003c\/strong\u003e\u003c\/b\u003e, using OEM Marshall parts throughout. It's a particularly good-looking combination and gives the amp something a little different while retaining the original wooden headshell.\u003c\/p\u003e\u003cp\u003eCrucially for a vintage 2203, the amplifier retains its \u003cb\u003e\u003cstrong\u003eoriginal mains transformer, output transformer and choke\u003c\/strong\u003e\u003c\/b\u003e.\u003c\/p\u003e\u003cp\u003eTonally, this is everything a good JMP 2203 should be: tight and immediate through the bottom end, aggressive through the upper mids and with masses of punch. The master-volume circuit allows the preamp to be driven into that unmistakable thick JMP crunch, while opening the master up delivers the huge authority and headroom you'd expect from a proper 100-watt Marshall.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eFully Serviced\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThe amplifier has recently undergone a \u003cb\u003e\u003cstrong\u003ecomprehensive professional service\u003c\/strong\u003e\u003c\/b\u003e, with the necessary age-related maintenance carried out to ensure it is reliable and ready to use.\u003c\/p\u003e\u003cp\u003eWork carried out included:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBias reservoir and smoothing capacitors replaced\u003c\/li\u003e\n\u003cli\u003eIncorrect HT feed resistors replaced\u003c\/li\u003e\n\u003cli\u003eV1 replaced with an OEM Marshall ECC83\u003c\/li\u003e\n\u003cli\u003eMissing 500pF capacitor reinstated in the V2 circuit\u003c\/li\u003e\n\u003cli\u003eBoth impedance and voltage selectors stripped and serviced\u003c\/li\u003e\n\u003cli\u003eAll potentiometers replaced\u003c\/li\u003e\n\u003cli\u003eAll four valve sockets replaced\u003c\/li\u003e\n\u003cli\u003eFull inspection, testing and set-up\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe amplifier is currently fitted with a matched set of \u003cb\u003e\u003cstrong\u003eTAD EL34B-STR\u003c\/strong\u003e\u003c\/b\u003e output valves.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eSpecification\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 Marshall 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 SL\/A 07538L\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eInspection Date:\u003c\/strong\u003e\u003c\/b\u003e 3 October 1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003ePower:\u003c\/strong\u003e\u003c\/b\u003e 100 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003ePower Valves:\u003c\/strong\u003e\u003c\/b\u003e 4× TAD EL34B-STR\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eMains Transformer:\u003c\/strong\u003e\u003c\/b\u003e Original\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eOutput Transformer:\u003c\/strong\u003e\u003c\/b\u003e Original\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eChoke:\u003c\/strong\u003e\u003c\/b\u003e Original\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eHeadshell:\u003c\/strong\u003e\u003c\/b\u003e Original\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e\u003c\/b\u003e Professionally recovered in white tolex\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eLogo:\u003c\/strong\u003e\u003c\/b\u003e Black Marshall logo\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cstrong\u003eRecover\/trim:\u003c\/strong\u003e\u003c\/b\u003e OEM Marshall parts\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003cstrong\u003eRecently professionally serviced\u003c\/strong\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003eFully tested and ready to use\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe combination of \u003cb\u003e\u003cstrong\u003eoriginal iron, original headshell and dated factory inspection sticker\u003c\/strong\u003e\u003c\/b\u003e makes this a particularly nice late-'70s 2203. The white recover and black logo give it a distinctive appearance without trying to disguise its history.\u003c\/p\u003e\u003cp\u003eUnderneath the white suit, it's exactly what you want from a \u003cb\u003e\u003cstrong\u003e1979 JMP 2203 — a proper 100-watt, EL34-powered Marshall built to be turned up.\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eWorldwide shipping available.\u003c\/strong\u003e\u003c\/b\u003e The amplifier will be carefully prepared and securely packed using purpose-made Overdrive Guitars packaging, with the valves protected for transit and shipment fully tracked and insured. Collection and demonstration are also available from our West London showroom.\u003c\/p\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":53664673202512,"sku":"0294","price":2399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/0919\/5856\/files\/bafd6d18-fe99-4f09-9ad2-a60d70367c55.jpg?v=1789895416","url":"https:\/\/overdriveguitars.com\/products\/marshall-jmp-2203-mk2-master-model-lead-100-watt-guitar-amp-head-1979-white-rev-102012664","provider":"Overdrive Guitars","version":"1.0","type":"link"}