Revox B 780 specifications

Category : Receiver

Brand : Revox

General

connectors

Technical data

amplifier

Tuner

special features

• manufacturer: Revox
• model: B 780 (Made as B739 as a Tuner, pre-amp without the power amp)
• type: Receiver
• year of construction: 1980 - 1984
• Switzerland
• color: silver / grey
• remote control: Yes - but only the grid via "Power On Kit," of B710 Tape Deck
• power consumption: 550 W max.
• Dimensions (WxHxD): 452 x 151 x 420 mm
• Weight: 17 kg
• Factory price approx.: 3'500 DM

• Number of inputs:
  • Phono MM: 3.0 mV, 47 k643961b8da111c0a15d770a1109a86d4, 220 pF, 160 mV max.
  • Phono MC: 0.1 - 2 mV, 100 ohm, 6 mV max.
  • Aux: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
  • Tape Play 1, 2: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
  • Tape Play DIN 1, 2: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
  • VHF Antenna: 75 643961b8da111c0a15d770a1109a86d4, 300 ohm
  • The tuner definitely has no medium wave
• Number of Outputs:
  • Tape Rec 1, 2: 135 mV, 47 k643961b8da111c0a15d770a1109a86d4
  • Tape Rec DIN: 5.5mV, 10 k643961b8da111c0a15d770a1109a86d4
  • Pre Out 1, 2: 2 V, 4 V, 1 k643961b8da111c0a15d770a1109a86d4
  • Headphones (6.3mm jack): 4 V, 220 ohm
  • 2 pairs of speakers

• Phono MM: 3.0mV, 47 k643961b8da111c0a15d770a1109a86d4, 220 pF, 160 mV max.
• Phono MC: 0.1 - 2 mV, 100 ohm, 6 mV max.
• Aux: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
• Tape Play 1, 2: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
• Tape Play DIN 1, 2: 150 mV, 50 k643961b8da111c0a15d770a1109a86d4, 8 V max.
• FM antenna: 75 643961b8da111c0a15d770a1109a86d4s, 300 643961b8da111c0a15d770a1109a86d4s
• The Tuner has definitely not a medium wave

• Tape Rec 1, 2: 135 mV, 47 k643961b8da111c0a15d770a1109a86d4
• Tape Rec DIN: 5.5 mV, 10 k643961b8da111c0a15d770a1109a86d4
• Pre Out 1, 2: 2 V, 4 V, 1 k643961b8da111c0a15d770a1109a86d4
• headphone (6.3 mm Jack): 4 V, 220 643961b8da111c0a15d770a1109a86d4
• 2 pairs of Speakers

• the duration of the performance (total harmonic distortion)
  • 8 643961b8da111c0a15d770a1109a86d4: 2x 80 W (RMS , 20 - 20, 000 Hz)
  • 4 643961b8da111c0a15d770a1109a86d4: 2x 110 W
• dynamic performance
  • 8 643961b8da111c0a15d770a1109a86d4s: 110 W
  • 4 643961b8da111c0a15d770a1109a86d4s: 140 watts
• total harmonic distortion: 0.01 by %
• damping factor: 100 @ 8 643961b8da111c0a15d770a1109a86d4s
• frequency response:
  • Phono: 20 - 20 000 Hz, ± 0.3 dB
  • high-level: 20 - 20 000 Hz, + 0 dB, 0.3 dB
• signal-to-noise ratio:
  • Phono MM: 73 dB
  • Line: 90 dB
• control:
  • Bass: ± 8 dB at 120 Hz
  • presence: ± 8 dB at 3 kHz
  • treble: ± 8 dB at 8 kHz
• Loudness: + 5 dB at 100 Hz, + 6 dB at 10 kHz
• High Filter : - 3 dB at 8 kHz, 12 dB / octave
• Low Filter (Subsonic): - 3 dB at 18 Hz, 12 dB / octave
• Mute: - 20 dB

• 8 643961b8da111c0a15d770a1109a86d4: 2x 80 W (RMS , 20 - 20, 000 Hz)
• 4 643961b8da111c0a15d770a1109a86d4: 2x 110 W

• 8 643961b8da111c0a15d770a1109a86d4s: 110 W
• 4 643961b8da111c0a15d770a1109a86d4: 140 W

• Phono: 20 - 20 000 Hz, ± 0.3 dB
• high-level: 20 - 20 000 Hz, + 0 dB, 0.3 dB

• Phono MM: 73 dB
• Line: 90 dB

• Bass: ± 8 dB at 120 Hz
• presence: ± 8 dB at 3 kHz
• treble: ± 8 dB at 8 kHz

• receiving: FM
• frequency:
  • FM: 87.5 - 108 MHz
• input sensitivity:
  • FM: 2,5 µV
  • FM Stereo: 25 µV
• frequency response: 20 - 15 000 Hz, + 0.3 dB - 0.8 dB
• total harmonic distortion:
  • Mono: 0,08 %
  • Stereo: 0,1 %
• signal-to-noise ratio:
  • FM:
    • Mono: 78 dB
    • Stereo: 72 dB
• channel separation: 50 dB
• selectivity: 60 dB
• frequency selection: 0.8 dB
• in addition to the wave selection: 110 dB
• mirror frequency attenuation: 110 dB
• ZF-attenuation: 110 dB
• MW suppression: 72 dB
• preset memory: FM, a total of 20 memory slots free programming

• FM: 87.5 - 108 MHz

• FM: 2,5 µV
• FM Stereo: 25 µV

• Mono: 0,08 %
• Stereo: 0,1 %

• FM:
  • Mono: 78 dB
  • Stereo: 72 dB

• Mono: 78 dB
• Stereo: 72 dB

• sound Linear switch
• Tape Dubbing
• Automatic channel scan
• Mono / Stereo switchable

• Other models from the same series:
• amplifier:
• Revox B 750
• Revox B 750 MK II

• power amplifier
• Revox A 740

• Tuner
• Revox B 760

• Receiver:
• Revox B 780

• Preceiver :
• Revox B 739

• CD Player
• Revox B 126

• Tape Deck:
• Revox B 710

• coil tape:
• Revox B-77

• record player:
• Revox B 790
• Revox B 795

• speakers:
• Revox BR 320
• Revox BR 430
• Revox BR 530
• Revox Symbol B
• Revox Triton B

• image: Revox B 780

• extract from the prospectus: Revox B 780

• Audio
  • 07/1980: Judgment see Revox -website/Link 01/2017
  • 06/1983: comparison test with brown R1 Braun Atelier series
• stereo play 02/1981

• 07/1980: Judgment see Revox -website/Link 01/2017
• 06/1983: comparison test with brown R1 Braun Atelier series

• B 700-series Revox website

Comment:

Comment box:

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