Original 1960s Neumann U77 - Serviced by Wagner

Original 1960s Neumann U77 - Serviced by Wagner

Marsoni

M251S

$4499.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Original 1960s Neumann U77 - Serviced by WagnerReleased in 1968, the Neumann U77 is a rare transitional large diaphragm condenser microphone that bridges the circuitry of the revered tube based U67 with the new solid state era ushered in by the U87. Designed to operate on the 12V AB powering system used by European broadcasters at the time, the U77 uses the same K67 dual diaphragm capsule and transformer coupled FET design as the U87, but housed in a body and headbasket virtually identical to the

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I will use this in every car I own from now. Cleaned it real well did exactly what it said so and my truck runs a lot better definitely can tell the difference.. it was work the extra oil and work. The bottle I bought came with instructions in English, which made it easy for me. The quality of it is light brake cleaner, but meant for engines and it ran great very easy to use this pour in.

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Reviewed in the United States on October 19, 2025

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Beni

Carnegie, US

★★★★★ 5

Does its job.

Always a go to before oil changes. Helps remove some extra sludge/deposits. DO NOT DRIVE OR REV THE VEHICLE WHEN USNG THE PRODUCT, only idle for 10-15 min. Ive seen reviews where people drove with it potentially ruining the engine.

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Reviewed in the United States on March 26, 2026

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Adan Ichich

Draper, US

★★★★★ 5

Calidad de limpieza al motor

Excelente producto, lo llevo usándolo un buen tiempo, en cada cambio de aceite, limpia bien por dentro del motor. Es fácil usarlo, hecharlo donde se llena el aceite del motor, y enciende el motor espere 10 minutos, y apague el motor, y vuelve a esperar 25 o 30 minutos para que se enfríe el motor, ya cumplido lo 25 o 30 minutos sacar el aceite viejo del motor. Listo, producto muy recomendable. Excelente funcionamiento, chevy silverado 2004

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Reviewed in the United States on March 15, 2026

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Kwang's Chowover

Boise, US

★★★★★ 5

Good

Very nice very good

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Reviewed in the United States on February 10, 2026

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John sutton

Bozeman, US

★★★★★ 5

Excellent plugs, superb performance

Exactly as described at a decent price. I've found over my decades of doing my own tune ups, the one thing you can't skimp on when tuning up your vehicle, plugs and its shows if you do. Out of the box, all 4 were gapped correctly. Ease of installation depends on your vehicle and ones mechanical ability with PATIENCE. 100% compatible with my vehicle, be sure to match you numbers. Overall 5 stars for performance and price.

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Reviewed in the United States on May 14, 2026