{"product_id":"marshall-jmp-1959-mk-ii-super-lead-2-channel-100-watt-guitar-amp-head-1978-serviced-rev-98681936","title":"Marshall JMP 1959 MK II Super Lead 2-Channel 100-Watt Guitar Amp Head 1978 - Serviced","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 1959 – 1978 Super Lead 100 Watt\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\u003eA superb 1978 Marshall JMP 1959 Super Lead, one of the most iconic guitar amplifiers ever built. Long before the arrival of the JCM800, the 1959 Super Lead had already cemented its place in rock history, powering the sound of Hendrix, Page, Blackmore, Van Halen and countless other legendary players.\u003c\/p\u003e\u003cp\u003eBuilt during Marshall’s highly desirable late-’70s era, this 100-watt head delivers everything that made the Super Lead the benchmark for British valve amplification—massive clean headroom, explosive dynamics and the unmistakable roar that only a cranked Plexi-style circuit can produce.\u003c\/p\u003e\u003cp\u003eThis amplifier has been fitted with a \u003cb\u003e\u003cstrong\u003egenuine Marshall replacement output transformer\u003c\/strong\u003e\u003c\/b\u003e, preserving its authenticity while ensuring dependable performance. OEM replacement transformers supplied by Marshall have long been accepted as the preferred replacement when originals fail, maintaining the amplifier’s correct specification and characteristic sound.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel: JMP 1959 Super Lead\u003c\/li\u003e\n\u003cli\u003eYear: 1978\u003c\/li\u003e\n\u003cli\u003eSerial Number: S\/A 01064K\u003c\/li\u003e\n\u003cli\u003eInspection Sticker Date: 08\/02\/1978\u003c\/li\u003e\n\u003cli\u003eOutput: 100 Watts\u003c\/li\u003e\n\u003cli\u003ePower Valves: 4 x EL34B - \u003cb\u003e\u003cstrong\u003eNew OEM Marshall\u003c\/strong\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003ePreamp Valves: 3 x ECC83 \/ 12AX7\u003c\/li\u003e\n\u003cli\u003eChannels: Four Inputs (High \u0026amp; Low Sensitivity – Normal \u0026amp; High Treble)\u003c\/li\u003e\n\u003cli\u003eControls: Presence, Bass, Middle, Treble, Volume I, Volume II\u003c\/li\u003e\n\u003cli\u003eImpedance Selector: 4Ω \/ 8Ω \/ 16Ω\u003c\/li\u003e\n\u003cli\u003eConstruction: UK-built PCB construction with flying leads\u003c\/li\u003e\n\u003cli\u003eOutput Transformer: Genuine Marshall OEM replacement transformer\u003c\/li\u003e\n\u003c\/ul\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\u003eAll replacement parts are OEM Marshall where possible\u003c\/li\u003e\n\u003cli\u003eV1 Preamp replaced - OEM ECC83\u003c\/li\u003e\n\u003cli\u003eAll Pots replaced\u003c\/li\u003e\n\u003cli\u003eNew knob set\u003c\/li\u003e\n\u003cli\u003eFuse Holder replaced\u003c\/li\u003e\n\u003cli\u003eDedicated Chassis Earth\u003c\/li\u003e\n\u003cli\u003eBias feed resistor\u003c\/li\u003e\n\u003cli\u003eNew Set of EL34B output valves\/tubes\u003c\/li\u003e\n\u003cli\u003eBias set up to factory spec\u003c\/li\u003e\n\u003cli\u003ePAT safety tested\u003c\/li\u003e\n\u003cli\u003eChecked for reliability, correct operation and safe performance.\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 1959 Super Lead remains the definitive non-master volume Marshall. Loud, dynamic and incredibly responsive, it rewards every nuance of your playing in a way few amplifiers can.\u003c\/p\u003e\u003cp\u003eWith both channels available for jumping, the Super Lead offers an enormous range of tones—from shimmering cleans and edge-of-breakup blues to the huge, harmonically rich overdrive that has become synonymous with classic British rock. Turn it up and the EL34 power section comes alive with singing sustain, aggressive upper mids and an unmistakable three-dimensional character that has inspired generations of guitarists.\u003c\/p\u003e\u003cp\u003eUnlike later master volume models, the overdrive comes largely from the output stage, giving the amplifier a wonderfully open feel and an organic response that simply can’t be replicated.\u003c\/p\u003e\u003cp\u003eWhether you’re chasing Hendrix, Page, Angus Young or early Eddie Van Halen, few amplifiers capture that era of rock guitar as convincingly as a late-’70s Super Lead.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eA well-preserved vintage example showing honest signs of use consistent with its age. It retains all of the character expected from a genuine late-’70s JMP and presents beautifully for an amplifier approaching 50 years old.\u003c\/p\u003e\u003cp\u003eThe original output transformer has been replaced with a genuine Marshall OEM replacement unit at the Marshall factory.  The head is in good condition for the year with only minor snags\/scuffs to the tolex.\u003c\/p\u003e\u003cp\u003ePlease study the photographs carefully as they form part of the description.\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cstrong\u003eWorldwide Shipping\u003c\/strong\u003e\u003c\/b\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":53664680083792,"sku":"0180","price":2099.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/0919\/5856\/files\/dfacbafa-cecf-44ed-8e40-ab1cea8bda83.jpg?v=1789895447","url":"https:\/\/overdriveguitars.com\/products\/marshall-jmp-1959-mk-ii-super-lead-2-channel-100-watt-guitar-amp-head-1978-serviced-rev-98681936","provider":"Overdrive Guitars","version":"1.0","type":"link"}