A Marshall 1971 Lead Head JMP 1987 50 Watt amplifier with gold control panel sits atop a speaker cabinet; guitars hang behind, evoking classic British grind. Includes flight case.
A 1971 Marshall Lead Head JMP 1987 50 Watt amp head sits on a matching cabinet. Multiple control knobs and gold mesh highlight its vintage style, with guitars behind it, capturing classic British grind. Flight case included.
Close-up of a black, textured Marshall 1971 Lead Head JMP 1987 50 Watt amp with flight case, acoustic guitars hanging in the background, and guitar cases on the floor.
Several acoustic guitars hang on a wall in a music store, with a Marshall 1971 Lead Head JMP 1987 50 Watt amp (includes flight case) stacked in the foreground, delivering classic British tones. A red stool sits to the left.
Top view of a Marshall 1971 Lead Head JMP 1987 50W, featuring vacuum tubes, transformers, capacitors, and labeled parts on a metal plate—classic British engineering. Includes flight case.
The 1971 Marshall Lead Head JMP 1987 50 Watt by Marshall includes a flight case and features classic vacuum tubes and jacks on a beige metal chassis—perfect for delivering legendary British tones.
The 1971 Marshall Lead Head JMP 1987 50 Watt by Marshall features blue and silver cylindrical parts, a glass vacuum tube, and a worn label—capturing the vintage amp look—photographed on a white background. Includes flight case.
A classic 1971 Marshall Lead Head JMP 1987 50 Watt amp by Marshall, featuring blue capacitors, vacuum tubes, a metal transformer on a brass chassis, and comes with a flight case.
Interior view of a 1971 Marshall Lead Head JMP 1987 50 Watt amp by Marshall, showing resistors, capacitors, wiring, and circuits on a metal chassis—ideal for classic British Grind. Includes flight case.
Close-up of an electronic circuit board with resistors, capacitors, and wires inside a metallic enclosure—typical of a vintage Marshall 1971 Lead Head JMP 1987 50 Watt amp, known for its legendary British Grind sound. Includes flight case.
Interior of a vintage Marshall 1971 Lead Head JMP 1987 50W amp, showing circuit board with capacitors, resistors, wires, and jacks on metallic chassis—inspired by the iconic Marshall sound. Includes flight case.
Close-up of a vintage Marshall 1971 Lead Head JMP 1987 50 Watt amp interior, showing resistors, capacitors, wiring, and circuit boards—echoing the legendary British tone. Includes flight case.
Close-up of two metal transformers labeled "784-139" and "1202 184" on a circuit board—classic parts of the 1971 Marshall Lead Head JMP 1987 50 Watt, the vintage guitar amp from Marshall, known for its signature British sound.
Close-up of a label with handwritten names, signatures, and "14/6/66" under "TEST," typical of a vintage Marshall amp like the 1971 Marshall Lead Head JMP 1987 50 Watt Includes Flight Case, known for its classic British Grind sound.
A Marshall 1971 Lead Head JMP 1987 50 Watt amplifier with gold control panel sits atop a speaker cabinet; guitars hang behind, evoking classic British grind. Includes flight case.
A 1971 Marshall Lead Head JMP 1987 50 Watt amp head sits on a matching cabinet. Multiple control knobs and gold mesh highlight its vintage style, with guitars behind it, capturing classic British grind. Flight case included.
Close-up of a black, textured Marshall 1971 Lead Head JMP 1987 50 Watt amp with flight case, acoustic guitars hanging in the background, and guitar cases on the floor.
Several acoustic guitars hang on a wall in a music store, with a Marshall 1971 Lead Head JMP 1987 50 Watt amp (includes flight case) stacked in the foreground, delivering classic British tones. A red stool sits to the left.
Top view of a Marshall 1971 Lead Head JMP 1987 50W, featuring vacuum tubes, transformers, capacitors, and labeled parts on a metal plate—classic British engineering. Includes flight case.
The 1971 Marshall Lead Head JMP 1987 50 Watt by Marshall includes a flight case and features classic vacuum tubes and jacks on a beige metal chassis—perfect for delivering legendary British tones.
The 1971 Marshall Lead Head JMP 1987 50 Watt by Marshall features blue and silver cylindrical parts, a glass vacuum tube, and a worn label—capturing the vintage amp look—photographed on a white background. Includes flight case.
A classic 1971 Marshall Lead Head JMP 1987 50 Watt amp by Marshall, featuring blue capacitors, vacuum tubes, a metal transformer on a brass chassis, and comes with a flight case.
Interior view of a 1971 Marshall Lead Head JMP 1987 50 Watt amp by Marshall, showing resistors, capacitors, wiring, and circuits on a metal chassis—ideal for classic British Grind. Includes flight case.
Close-up of an electronic circuit board with resistors, capacitors, and wires inside a metallic enclosure—typical of a vintage Marshall 1971 Lead Head JMP 1987 50 Watt amp, known for its legendary British Grind sound. Includes flight case.
Interior of a vintage Marshall 1971 Lead Head JMP 1987 50W amp, showing circuit board with capacitors, resistors, wires, and jacks on metallic chassis—inspired by the iconic Marshall sound. Includes flight case.
Close-up of a vintage Marshall 1971 Lead Head JMP 1987 50 Watt amp interior, showing resistors, capacitors, wiring, and circuit boards—echoing the legendary British tone. Includes flight case.
Close-up of two metal transformers labeled "784-139" and "1202 184" on a circuit board—classic parts of the 1971 Marshall Lead Head JMP 1987 50 Watt, the vintage guitar amp from Marshall, known for its signature British sound.
Close-up of a label with handwritten names, signatures, and "14/6/66" under "TEST," typical of a vintage Marshall amp like the 1971 Marshall Lead Head JMP 1987 50 Watt Includes Flight Case, known for its classic British Grind sound.
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JMP 1987 2-Channel 50-Watt Guitar Amp Head

1971 Marshall Lead Head JMP 1987 50 Watt Includes Flight Case

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The Sound of Rock History—Vault-Protected & USA-Bound

Most guitarists spend a lifetime chasing the "British Grind" heard on the greatest records of the 70s. But finding a vintage '71 JMP in this condition is rare—and finding one you can trust to a shipping carrier is even rarer.

This 1971 Marshall JMP 50W Lead comes paired with a heavy-duty professional flight case, meaning "shipping anxiety" is officially canceled. We’ve armored this legend so it arrives at your door exactly as it left ours: ready to roar.

Why the 50W JMP is the "Sweet Spot"

  • Armored for the Road: The included pro-grade flight case is the ultimate insurance policy. Whether it's going across the state or across the country, your investment stays showroom-clean.

  • Touch-Sensitive Response: Hand-wired turret board construction makes this amp feel like an extension of your fingers. It’s immediate, punchy, and incredibly responsive to your pick attack.

  • The "Slippery" Cleanup: Roll your guitar’s volume back and the aggressive mids transform into a bold, chimey rhythm tone that breathes.

  • Power Without the Pain: You get the singing power-tube saturation of a vintage Plexi circuit without the back-breaking weight or the "stadium-only" volume of a 100-watt head.

Condition & Provenance

This 1971 specimen has survived the decades in remarkable shape. While it shows the light "honest play wear" you’d expect from a 50-year-old icon, it remains clean, authoritative, and ready for the tracking room.

Shipping Note: We offer Secure Shipping within the USA only. Thanks to the included flight case, your Marshall is protected by a literal suit of armor from our door to yours.

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CALIFORNIA PROPOSITION 65 WARNING

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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