Yamaha M-4
Data[edit]
General
- Manufacturer: Yamaha
- Model: M-4
- Years of manufacture: 1979 - 1981
- Type: Power Amplifier
- Color: Black
- Remote control: No
- Power consumption: 900 watts
- Dimensions: 435 x 146 x 375 mm (WxHxD)
- Weight: 18.5 kg
- Original price approx.: 1450 DM
Connections
- Number of inputs:
- Line: 1 V, 25 kOhm
- Number of outputs:
- 2x loudspeaker
Technical Data
- Continuous power (at distortion factor)
- 8 Ohm: 2x 120 W
4 Ohm: 2x 170 W
- Dynamic power
- 8 Ohm: 2x 135 W
- 4 Ohm: 2x 210 W
- Total harmonic distortion: 0.005% (120 W / 8Ώ ) / < 0.01% (170 W / 4Ώ)
- Attenuation factor: 200 (8Ohm, 1kHz), 100 (4 Ohm / 1 kHz)
- Frequency response: 10 - 100,000 Hz
- Ripple spacing (shorted):
- Stereo channel separation: 90 dB (1 kHz).
- Signal-to-noise ratio: 118 dB
Special Features
- Power display 2 mW - 145 W (10 LEDs / channel)
- Overload indicator (distortion dependent)
- Input level control
Remarks[edit]
- Other models in the same series:
- Yamaha M-2
- Previous model:
- None
- Successor model:
- Yamaha M-50
Pictures[edit]
- Image: Yamaha M-4
