Yamaha B-70
Data
General
- Manufacturer: Yamaha
- Model: B-70
- Type: Power amplifier
- Years of manufacture: 1981 - 1984
- Color: Black
- Remote control: No
- Power consumption: 900 W
- Dimensions: 435 x 133 x 380 mm (WxHxD)
- Weight: 13.7 kg
- Original price approx.: 180'000 Yen (Japan, 1981), 2'400 DM
Connections
- Number of inputs:
- Input (sensitivity/impedance).
- Line 1.41V/25 KOhm
- Number of outputs:
- 2x loudspeaker
Technical Data
- Continuous power (at distortion factor)
- 8 Ohm: 2x 200 Watt
4 Ohm: 2x 250 Watt (M-70 cannot be measured at 4 Ohm!)
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: 0.002%
- Attenuation factor: 200
- Frequency response: 0 - 100'000 Hz
- Ripple spacing (shorted):
- Stereo channel separation: 95 dB
- Signal-to-noise ratio: 124 dB
Special Features
- Power meter, switchable and sensitivity switchable
- Channel-separated level controls for speaker pairs
Remarks
- Other models in the same series:
- Yamaha B-50
- Yamaha B-70
- Yamaha M-50
- Yamaha M-70
- Yamaha BX-1
Pictures
- Image: Yamaha B-70
Reviews
- The B-70 is the Japan variant of the M-70