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Yamaha C-4

Yamaha C-4
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1. General
System: Transistor
Colour: 1=Silver, 2=Black: 2
Pre Amplifier
Inputs: 2 Phono (MM, MC), 1 Tuner, 1 Tape, 1 Aux
Quadro: no
Inp. Sensitivity High Level: 150 mV
Inp. Impedance High Level: 47 kΩ
Signal/Noise High Level: 106 db
Inp. Sensitivity Phono MM: 2.5 mV
Inp. Impedance Phono MM: 0.1 k Ω ( 33, 47, 68, 100 k Ω switchable) kΩ
Frequency Response Phono MM: RIAA
Signal/Noise Phono MM: 97 db
Inp. Sensitivity Phono MC: 0.1 mV
Inp. Impedance Phono MC: 0.05 kΩ
Frequency Response: 5 - 100,000 HZ
Harmonic Distortion: 0.0035 % at rated output
Tone Controls: Bass, Treble
Frequencies: Bass ▒ 10dB/ 20 Hz, Treble ▒ 10dB/ 20,000 Hz
Loudness: no
2. Physical
Dimensions in Inches: 17.13 x 5.73 x 14.74 (w) x (h) x (d)
Dimensions in mm: 435 x 145.5 x 374.5 (w) x (h) x (d)
Weight in lbs: 40.79 lbs
Weight in Kg: 18.5 Kg


Pekka J. Poutiainen - 09/05/2013  5 of 5 Stars!
Yamaha C-4 are build like a dream pre amplifier. However, 30 years old needs a fresh high quality electrolytic capacitors. As I can remember theres a 100 ones and some are bipolars !!! Its a damn hard work to do that kind of service. Also, its a wise to use much more larger ones for power supply section. Please , dont put that to the power line before all the electrolytic capacitors are replaced to the fresh ones. Otherwise, those very rare phono section transistors would be dead !!! Be carefull ! Nowadays, I have a Yamaha C-45 , but like to own C-4 again.

Otto KiŠr Engelschi°n - 11/21/2012  5 of 5 Stars!
I totally agree with previous review, but now something has happened, and I am struggeling
to find someone dedicated to fix my beloved C4 to run 2 x monoblocks and my turntable.
Mine is also now over 30 years old........

JD Daniels - 05/31/2011  5 of 5 Stars!
I've owned this preamp for over thirty years of almost daily play and had one minor problem that was an easy fix. This amp was made when Yamaha was building, IMO, some of the best amps and preamps on the market. If you are into vinyl there is no better preamp out their for the money. They are rock solid and you would spend thousands today to find a comparable preamp.

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Yamaha C-4
Yamaha C-4 are build like a dream pre amplifier. However, 30 ..
5 of 5 Stars!

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