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Luxman C-120A

Stereo Duo-Beta Preamplifier (1980-83)

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Luxman C-120A


Frequency response: 10Hz to 80kHz

Total harmonic distortion: 0.007%

Input sensitivity: 0.2mV (MC), 2mV (MM), 130mV (line)

Signal to noise ratio: 74dB (MC), 88dB (MM), 100dB (line)

Output: 130mV (line), 1V (Pre out), 18V (Pre out Max)

Dimensions: 438 x 290 x 87mm

Weight: 5.5kg

Year: 1980


schematics   English -

service manual   English - Ivy Caudieus

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Reviewed Dec 06th, 2014 by tuaboy

Good looking and effective. Excellent phono stage. Rotary selectors can get touchy - use Detoxit.



re: C-120A

Using schematic circuit diagram i replaced reservoir capacitors, a faulty zr-24 relay,and few burnt resistors,now my preamp functions well.Thanks for providing circuit

Luxman preamp

Thank you so much for this schematic! I'm rebuilding my Luxman 120A and this is invaluable. Kind Regards, Bill

dischief's picture

Luxman C120A Users Manual


I'm giving my daughter a C120A preamp so she can use a Denon 103 MC. The options on the preamp are somewhat confusing without a users manual and I've yet to find one. Can anyone help?


This website is not affiliated with or sponsored by Luxman. To purchase C-120A/C-120A II spares or accessories, please contact the company via their website or visit an authorised retailer.