Marshall JMP 1959 Super Lead 2-Channel 100-Watt Guitar Head 1973 w/ Master Mod

The 1973 Marshall JMP Model 1959 Super Lead is a 100-watt tube head delivering the aggressive, harmonically rich tones that defined rock in the early '70s. Designed with a non-master volume circuit, it produces massive headroom, articulate cleans, and the raw, dynamic overdrive that becomes legendary when cranked. The two-channel design with four inputs allows for blending Normal and High Treble voicings, while the EL34-driven power section delivers the unmistakable punch and sustain that made this amp an industry standard.

Tube complement includes three ECC83 (12AX7) preamp tubes and four EL34 power tubes.

This example is heavily modified, with a Master volume / 2203 conversion mod, FX Loop, and Resonance knob for additional girth. Visually you can tell this amp has been played out and gigged across its 50 year lifetime; see photos.

Specs

• Brand: Marshall
• Model: JMP Model 1959 Super Lead
• Year: 1973
• Country: UK
• Serial: 7844E
• Condition: Good (Vintage)
• Power: 100W
• Type: Head
• Exterior Material: Tolex
• Exterior Color: Black
• Panel: Anodized
• Preamp Tubes: 3x ECC83 (12AX7)
• Power Tubes: 4x EL34
• Channels: 2 (Normal, High Treble)
• Inputs: 4 (2 per channel, bridgeable)
• Effects Loop: Yes - Modded, toggle bypass
• Output Impedance: 4Ω, 8Ω, 16Ω
• Outputs: 2 Speaker Outputs
• Controls:
• • Presence
  • Bass
  • Middle
  • Treble
  • Master Volume
  • Preamp Gain
  • Resonance (Back Panel, Modded)
• Mods:
• • Resonance (Back Panel)
  • Toggleable FX Loop
  • Master Volume