Yamaha C-4 Natural Sound Stereo Control Amplifier Dual Phono MC/MM (1979-81)
The Yamaha C-4 is a highly regarded Natural Sound stereo control amplifier from Yamaha’s golden-era hi-fi lineup. Renowned for its exceptionally flexible phono section and transparent signal path, the C-4 is ideal for vinyl-focused systems and serious vintage builds. With dual phono inputs supporting both MM and MC cartridges, precision tone controls, and extensive filtering options, it offers studio-grade control with classic Yamaha styling.
CONDITION
Refurbished and SPENCERTIFIED
SPENCERTIFIED - Fully certified by Spencer
100% tested and functional. Cleaned inside and out; worn parts replaced as needed. Controls, switches, and internal connections cleaned using WD-40 Specialist Electrical Contact Cleaner. Phono stage tested for both MM and MC operation. Line-level inputs and outputs verified for proper gain, channel balance, and low noise.
Cosmetic Condition: 8/10
Functional Condition: 10/10
📦 Professionally packed and shipped with care
What's in the box?
- Yamaha C-4 Natural Sound Stereo Control Amplifier Dual Phono MC/MM (1979-81)
FEATURES
- Frequency response: 5Hz to 100kHz
- Total harmonic distortion: 0.0035%
- Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV
- Signal to noise ratio: 77dB (MC), 85dB (MM), 100dB
- Channel separation: 85dB (MM), 85dB (MC), 85dB
- Output: 150mV (line), 2V (Pre out), 10V
- Dual phono inputs with MM and MC support
- Adjustable phono impedance and gain
- Variable loudness control
- Bass and treble tone controls with defeat
- Subsonic and high-cut filters
- Multiple line-level inputs for tuner and AUX sources
- Dual tape loops with monitoring
DIMENSIONS
- Size: 17" × 4.5" × 14.8" (W × H × D)
- Weight: 15 lbs
INPUTS
- Phono x3 L/R (back)
- Tuner x1 L/R (back)
- AUX x1 L/R (back)
- Tape x2 L/R (back)
OUTPUTS
- Headphones x1 (front)
- Tape x2 L/R (back)
- Pre Out x2 L/R (back)
- AC Outlets x3 (back)
MANUFACTURE PLACE
- Made in Japan
- MFD. 1979-81
