Rotel RB-870 BX

Data

General

• Manufacturer: Rotel
• Model: RB-870 BX
• Type: Power Amplifier
• Years of manufacture: 1987 - 1991
• Made in: Far East, developed in England
• Colour: Black
• Remote control:
• Power consumption: 500 W
• Dimensions: 430 x 109 x 315 (WxHxD)
• Weight: 9,4 kg
• Original price approx.: 1'050 DM (03/1992)

Connections

• Number of inputs: 1
  • 1,0V V/25 kOhm
• Number of outputs:
  • 1 loudspeaker pair

Technical Data

• Continuous power (at distortion factor)
  • 8 Ohm: 2 x 100 Watt RMS (20-20.000Hz, 0,03%)
  • 4 Ohm: 2 x 200 Watt (1kHz, 1%)
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Peak current: 50A (0.1 Ohm, 10µs, 1 pulse)
• Total harmonic distortion: 0.03%
• Attenuation factor: 180 (20 to 20.000Hz, 8Ohm
• Frequency response: 4 - 100,000 Hz (+0.5/-3 dB)
• Signal-to-noise ratio: 110 dB (IHF, A network)

Notes

• Other models in the same series:
• Preamplifier:
• Rotel RC-850
• Rotel RC-870 BX

• Power amplifiers:
• Rotel RB-850
• Rotel RB-870 BX
• Rotel RB-890

• Integrated Amplifier
• Rotel RA-810 A
• Rotel RA-820 A
• Rotel RA-820 BX 3
• Rotel RA-840 BX 3
• Rotel RA-870 BX

• [[Tuner:
• Rotel RT-830 A
• Rotel RT-850 A
• Rotel RT-870

• Tuner Preamplifier
• Rotel RTC-850

• Receiver:
• Rotel RX-850 A
• Rotel RX-855
• Rotel RX-875

• CD player
• Rotel RCD-820 B
• Rotel RCD-820 BX 2

• Tape Deck:
• Rotel RD-835
• Rotel RD-845
• Rotel RD-855
• Rotel RD-865

• Record Player
• Rotel RP-845

• Speakers:
• Rotel RL-850 II

Pictures

• Extract from brochure: Rotel RB-870 BX

Reports

• From original brochure: selected close tolerance components, direct signal routing, high power toroidal transformer. Even low impedance loads cannot impress the RB870BX due to its high reserves, which is why it can drive difficult speakers without any problems. In mono bridge connection the RB870BX delivers a channel power of 300 W.