Yamaha B-2x specifications

General

Connections

Tech nical data

A tip that applies to everything from Japan : Do not buy B2x directly from Japan on ebay , Japan has only 100 V (lowest voltage worldwide) The power amplifier has significantly less power and Japan devices mostly no voltage switching- it's not worth it ! The Japan version has maximum power consumption of 470 watts the European 1300 Watts

01/2024: The above tip falls into the category of "Dangerous half-knowledge"! Of course, you can buy European versions if electricity costs do not matter or takes into account that many JP manufacturers have "slimmed down" their European models. Please do not confuse power consumption with the "effective power/continuous power" (sine/RMS ). The Japanese version also provides 170W sine at 8 ohms. I would ALWAYS prefer the JP original versions (of the 70s and 80s)!

Manufacturer: Yamaha
Model: B-2x
Years of construction: 1985 - 1988
Manufactured in: Japan
Color: Black
Type: Stereo Analog
Remote Control: No
Power consumption: 470 watts, 1,300 watts max.
Dimensions: 435 x 164.5 x 422 mm (WxHxD)
Weight: 31 kg (re-weighed), according to the booklet 26 kg
New price approx.: 3.600,- DM

Number of inputs:
- 2x Line 1,3 V/ 20 kOhm
Number of outputs:
- 2 speaker pairs (switchable)
- A or B: 4- 16 ohm
- A+ B: about 8 ohm

2x Line 1.3V/ 20 kOhm

2 speaker pairs (switchable)
A + B: about 8 ohm

Continuous power (20Hz- 20kHz):
- 8 Ohm : 2x 170W 0.002 % Total harmonic distortion
- 6 Ohm : 2x 200W 0.002 % Total harmonic distortion
- 4 ohms: 2x 240 watts 0.003 % total harmonic distortion,
DIN output power:
- 2x 306 watts (1 kHz, 1 % total harmonic distortion.)
- 2x 350 watts (1 kHz 10 % harmonic distortion.)
Pulse power 1 kHz:
- 8 ohms: 2x 262 watts
- 6 ohms: 2x 337 watts
- 4 ohms: 2x 447 watts
- 2 ohms: 2x 625 watts
Total harmonic distortion: 0.002 % (at 8 ohms, 85 W, 10- 20 kHz)
Attenuation factor: 200 (8 ohms, 1 kHz)
Frequency response: 10- 100.000 Hz (8 ohms, 0,02 % harmonic distortion., 85 Watts)
External voltage range: 124 dB
Channel separation:
- 1 kHz: 95 dB
- 20 kHz: 75 dB
Inherent noise: 23 µV

8 ohms: 2x 170 watts 0.002 % Total harmonic distortion
6 ohms: 2x 200 watts 0.002 % Total harmonic distortion
4 Ohm s: 2x 240 watts 0.003 % Total harmonic distortion,