Luxman 5C50

Name: Luxman 5C50
Brand: Luxman

Documentation on the Luxman 5C50 is thin, and even the one substantial source, Vintage Knob, is muddled on some details. What the record does show: the 5C50 is an all-transistor stereo control amplifier (preamplifier) from Luxman's early solid-state era, part of the company's "50 Series" lineup. It was modestly specified, with just 8 transistors and 10 diodes in its semiconductor complement.

The known specifications are few but concrete. The tone controls offered ±7dB at 100Hz and 10kHz. Frequency response was rated at 20Hz–50kHz ±1dB, with phono input sensitivity of 2mV. Signal-to-noise was respectable for the period: 70dB on phono and 90dB on high-level inputs. Physically, it measured 410 x 126 x 245mm and weighed 4.8kg.

The matching power amplifier is a point of confusion. The source text gestures toward a companion amp, possibly designated the M-5C50, but the writing is garbled and contradictory, at one point even suggesting the M-120A. Which amplifier actually paired with the 5C50 is not confirmed, so the question stays open rather than guessed at.

No production years, original price, or owner reception have surfaced. The raw research includes an unverified suggestion that Luxman's early transistor gear is sometimes criticized for a "dark" or "muddy" sound, but that fans of vintage solid-state consider the 50 series a hidden gem. It comes from editorializing on a garbled YouTube title, not from a verified assessment, so treat it as anecdote rather than fact.

High Fidelity (May 1977, p.125) ran Luxman's advertising introducing the Laboratory Reference Series around this era. The 5C50 itself was not the subject of review coverage in the period sources available.

Known specs: