Revox A 700 specifications

Category : Tape machines

Brand : Revox

General

Connections

Tech nical data

Special features

But has the same problem in this class - like the PR99 Mark1 - NO TIMER/locator!!HW

!! In progress! The information is still incomplete and partly not entirely correct!

• Manufacturer: Revox
• Model: A 700
• Model series: Series 700
• Years of construction: 1973-1982
• Manufactured in: Germany/Switzerland
• Color: gray, alumium, side panels: walnut
• Remote control: option
• Power consumption: 130 W max.
• Dimensions: 490 mm × 470 mm × 210 mm (W × D × H, lying down)
• Weight: 23.5 kg
• Factory price approx.: 3600 DM

• Number of stereo inputs:
  • 2 × MIC (jack 6.3 mm): 0.15/1.8 mV at 6 kΩ balanced, earth-free
  • 1 × Phono (RCA): 2.5 mV to 50 kΩ (RIAA)
  • 2 × Aux (RCA): 40 mV to 100 kΩ
  • 1 × Radio (DIN): 3 mV to 33 kΩ
• Number of stereo outputs:
  • 2 × Aux (RCA): 1.55 V (6 dB ) on 5 kΩ
  • 1 × Radio (DIN): 0.775 V (0 dB) on 10 kΩ
  • 2 × Headphones (jack 6.3mm): max. 4.9V at 100 Ω

• 2 × MIC (jack 6.3 mm): 0.15/1.8 mV at 6 kΩ balanced, earth-free
• 1 × Phono (RCA): 2.5 mV at 50 kΩ (RIAA)
• 2 × Aux (RCA): 40 mV at 100 kΩ
• 1 × Radio (DIN): 3 mV on 33 kΩ

• 2 × Aux (RCA): 1.55 V (6 dB) on 5 kΩ
• 1 × Radio (DIN): 0.775 V (0 dB) on 10 kΩ
• 2 × Headphones (jack 6.3 mm): max. 4.9 V at 100 Ω

• Max. Coil Diameter: 26.5cm (10.5")
• Drive: 3 electr. regulated robust AC motors(direct drive)
  • variable speed about watches quartz reference (1.63840 MHz) phase-locked synchronized
  • 2 winding engines
• heads: 3
• tracks: 2 or 4, depending on the design,
• tape speeds: 9.5, 19 and 38 cm/s, ±0,1 %
• slip: <0,1 %
• flutter:
• Pitch changes:
  • at 38 cm/s >±0,06 %
  • at 19 cm/s >±0,08 %
  • at 9.5 cm/s >±0,1 %

• variable speed about watches quartz reference (1.63840 MHz) phase-locked synchronized
• 2 winding engines

• at 38 cm/s >±0,06 %
• at 19 cm/s >±0,08 %
• at 9.5 cm/s >±0,1 %

• total frequency response:
  • at 38 cm/s : 30-22.000 Hz +2/-3 dB or 50-18.000 Hz ±1.5 dB
  • at 19 cm/s : 30-20.000 Hz +2/-3 dB or 50-15.000 Hz ±1.5 dB
  • at 9.5 cm/s: 30-16.000 Hz +2/-3 dB or 50-10.000 Hz ±1.5 dB
• signal-to-noise ratio:
• s / n ratio:
  • at 38 cm/s >65 dB
  • at 19 cm/s >66 dB
  • at 9.5 cm/s >63 dB

• at 38 cm/s : 30-22.000 Hz +2/-3 dB or 50-18.000 Hz ±1.5 dB
• at 19 cm/s : 30-20.000 Hz +2/-3 dB or 50-15.000 Hz ±1.5 dB
• at 9.5 cm/s: 30-16.000 Hz +2/-3 dB or 50-10.000 Hz ±1.5 dB

• at 38 cm/s >65 dB
• at 19 cm/s >66 dB
• at 9.5 cm/s >63 dB

• total harmonic distortion: <0,6 % (0 VU, 19 and 38 cm/s), <1 % (0 VU, 9.5 cm/s),
• equalization: NAB or CCIR
• Crosstalk: Mono: >60 dB, Stereo: >45 dB (1 kHz)
• delete attenuation: ≥80 dB
• premagnetization and deletion frequency: kHz

• Mechanical:
• light indicator for synchronous state of the target speed
• FB variable speed (±7 semitones) possible
• electron. Band tension control with 2 inductive RF band tension sensors
• Extremely precise band time counter (minutes and seconds)
• Electric:
• 4 balanced microphone inputs
• Built-in mixing console for 2 selectable stereo channels
• Also with CCIR equalization on request

• The "big Revox " closes the The gap between the amateur top class and the purely professional studio machines.
• Overload resistance of all inputs better than 40 dB

• Other models of the same series:
• Revox A 77
• Revox A 700
• Revox B 77
• Revox PR 99

• Other models of the 700 series:
• Preceiver :
• Revox A 720

• Power amplifier:
• Revox A 722

• Quad ro Power amplifier:
• Revox A 724

• Picture: Revox A 700

• Detailed discussion with detailed measurements in "hifi-report 1974/75" (fono forum)

Comment:

Comment box:

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