Marshall JMP Super Bass vs Super Lead - How to convert
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Can we learn anything from this Strauss amp? Heaps!
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Modding '68 Superlead to EVH specs
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1974 Marshall Super Bass Restoration & Voicing - Part 1
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How to repair a Marshall JMP 2104 with many problems
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1968 Marshall Model 1986 JMP-50 Bass Amp in Beautiful Original Condition
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WTF! A Champ with an EL34. Is it louder? PART ONE
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Maximal Headroom for Everyone - Marshall 100W Super Lead 1968
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