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Yamaha C-4

Natural Sound Stereo Control Amplifier (1979-81)

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Yamaha C-4


Frequency response: 5Hz to 100kHz

Total harmonic distortion: 0.0035%

Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 77dB (MC), 85dB (MM), 100dB (line)

Channel separation: 85dB (MM), 85dB (MC), 85dB (line)

Output: 150mV (line), 2V (Pre out), 10V (Pre out Max)

Dimensions: 435 x 116 x 376mm

Weight: 8.6kg


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Reviewed Jul 17th, 2017 by plattenladen

Excellent Pre-amp with a plethora of functions, now long absent from pre-amplifiers like:
Dual switchable pre-outputs...
Semi parametric EQ that can be entirely bypassed...
3 (!) Phono inputs including a very good MC input...
Hard to find in a good condition, especially cosmetically.
Together with an M-4 (or M-2) Yamaha power amp a very good combo that sounds great for the money, even with Horn Speakers.



re: C-4

Classic piece of Yamaha gear, especially for the vinyl lover. I bought mine in 2009 from a guy in Arizona and had it shipped to me in PA. In 2011, I sent it to an excellent tech in Iowa who specializes in Yamaha gear. He did a total recap and reflowed the solder connections, among other things. I've used it in my main system since I bought it, except for the 3 weeks when it was receiving the "spa treatment". This pre will probably outlast me. I'll never sell it. I also have a good friend who bought one of these and sent it to the same tech in Iowa for a recap. He feels the same way as I do about his C-4.

I'm using two turntables, one with a MM cart and the other with a MC. This pre also has cartridge loading capability. The phono stage is outstanding. I would connect a third turntable but I don't have any room close enough, so it's in another system. I use one of the outputs to a power amp and the other to my subs. The output on-off switches are very handy if I want to turn the subs off, or the speakers when dialing in the subs.

Yamaha C-6 Pre-amp

Does anyone have a comparison between this C-4 and the C-6. A fellow employee has a Yamaha C-6 which he offered to me once he locates it in storage. He said there was a manual with it so I have an idea what to do with that since there is no C-6 manual on here.

I always have mine bought in

I always have mine bought in 1978, it is in perfect condition, packed in Cellophane since many years ...
Thanks a lot for sharing !

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