Yamaha B-4
Data[edit]
General
- Manufacturer: Yamaha
- Model: B-4
- Type: Power amplifier
- Years of manufacture: 1978 - 1981
- Made in: Japan
- Color: Black
- Remote control: No
- Power consumption: 900 watts max.
- Dimensions: 435 x 145.5 x 381 mm (WxHxD)
- Weight: 21 kg
- Original price approx.: 138'000 Yen (Japan, 1978), 2'100 DM
Connections
- Number of inputs:
- Line: 1 V, 25 kOhm
- Number of outputs:
- 1x loudspeaker
Technical Data
- Continuous power (at distortion factor)
- 8 Ohm: 2x 120 Watt
- 4 Ohm: 2x 170 Watt
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: 0.005%
- Attenuation factor: 200
- Frequency response: 10 - 100,000 Hz
- Ripple spacing (short-circuited):
- Stereo channel separation: 90 dB
- Signal-to-noise ratio: 118 dB
- Further data at "Hifi Engine": [1]
Special Features
- Input level control
Remarks[edit]
- Other models in the same series:
- Yamaha B-2
- Yamaha B-2x
- Yamaha B-4
- Yamaha B-6
Pictures[edit]
- Image: Yamaha B-4
Reports[edit]
- The B-4 is the Japan version of the M-4