Difference between revisions of "Revox A 700"
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| − | == | + | == Data == |
| − | {{ | + | {{navigation}} |
| − | ''' | + | '''General''' |
| − | * | + | * Manufacturer: [[Revox]] |
| − | * | + | * Model: A 700 |
| − | * | + | * Model series: 700 series |
| − | * | + | * Years of manufacture: 1973-1982 |
| − | * | + | * Manufactured in: Germany/Switzerland |
| − | * | + | * Color: gray, aluminum, side panels: Walnut |
| − | * | + | * Remote control: Option |
| − | * | + | * Power consumption: 130 W max. |
| − | * | + | * Dimensions: 490 mm × 470 mm × 210 mm (W × D × H, horizontal) |
| − | * | + | * Weight: 23,5 kg |
| + | * Original price approx.: 3600 DM | ||
| − | ''' | + | '''Connections''' |
| − | * | + | * Number of stereo inputs: |
| − | **2 | + | ** 2 × MIC (jack 6.3 mm): 0.15/1.8 mV at 6 kΩ balanced, floating. |
| − | + | 1 × phono (cinch): 2.5 mV at 50 kΩ (RIAA) | |
| − | **2 | + | ** 2 × Aux (Cinch): 40 mV at 100 kΩ |
| − | **1 | + | ** 1 × radio (DIN): 3 mV at 33 kΩ. |
| − | * | + | * Number of stereo outputs: |
| − | **2 | + | ** 2 × Aux (Cinch): 1.55 V (6 dB) at 5 kΩ |
| − | **1 | + | ** 1 × radio (DIN): 0.775 V (0 dB) at 10 kΩ |
| − | **2 | + | ** 2 × headphones (jack 6.3 mm): max. 4.9 V at 100 Ω |
| − | ''' | + | '''Technical Data''' |
| − | * | + | * Max. Coil diameter: 26,5 cm (10,5") |
| − | + | Drive: 3 electr. controlled robust AC motors(direct drive) | |
| − | * | + | * Tone motor via clock quartz reference (1.63840 MHz) phase-locked synchronized |
| − | ** 2 | + | ** 2 winding motors |
| − | * | + | * Heads: 3 |
| − | * | + | * Tracks: 2 or 4, depending on version |
| − | * | + | * Tape speeds: 9.5, 19 and 38 cm/s, ±0.1 % |
| − | * | + | * Slip: <0.1 % |
| − | * | + | * Synchronization fluctuations: |
| − | * | + | * Pitch fluctuations: |
| − | ** | + | ** at 38 cm/s >±0.06 %. |
| − | ** | + | ** at 19 cm/s >±0.08 % |
| − | ** | + | ** at 9.5 cm/s >±0.1 % |
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| − | |||
| − | |||
| − | |||
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| − | * | + | * Overall frequency response: |
| − | * | + | ** at 38 cm/s : 30-22,000 Hz +2/-3 dB and 50-18,000 Hz ±1.5 dB respectively. |
| − | * | + | 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: | |
| + | * External voltage spacing: | ||
| + | ** at 38 cm/s >65 dB | ||
| + | ** at 19 cm/s >66 dB | ||
| + | ** at 9.5 cm/s >63 dB | ||
| + | * Distortion factor: <0.6% (0 VU, 19 and 38 cm/s), <1% (0 VU, 9.5 cm/s), | ||
| + | * Equalization: NAB or CCIR | ||
| + | * Crosstalk attenuation: Mono: >60 dB, Stereo: >45 dB (1 kHz) | ||
| + | * Cancellation attenuation: ≥80 dB | ||
| + | * Premagnetization and cancellation frequency: kHz | ||
| − | |||
| − | + | '''Special equipment''' | |
| − | * | + | * Mechanical: |
| − | * | + | * Indicator light for synchronous state of set speed |
| − | + | * Via FB variable speed (±7 semitones) possible | |
| − | * | + | Electron. Electronic belt tension control with 2 inductive HF belt tension sensors |
| − | + | * Extremely precise tape time counter (minutes and seconds) | |
| − | * 4 | + | * Electrically: |
| − | * | + | * 4 balanced microphone inputs |
| − | * | + | * Built-in mixer for 2 selectable stereo channels |
| − | + | * On request also with CCIR equalization | |
| − | |||
| − | == | + | == Remarks == |
| − | + | * The "big Revox" closes the gap between the amateur top class and the purely professional studio machines. | |
| − | * | + | * Overload resistance of all inputs better than 40 dB |
| − | + | 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 quite correct! | ||
| − | |||
| − | == | + | * Other models of the same series: |
| − | * hifi-report 1974/75 (fono forum) | + | * [[Revox A 77]] |
| + | * [[Revox A 700]] | ||
| + | * [[Revox B 77]] | ||
| + | * [[Revox PR 99]] | ||
| + | |||
| + | |||
| + | * Other models in the 700 series: | ||
| + | * [[Preceiver: | ||
| + | * [[Revox A 720]] | ||
| + | |||
| + | |||
| + | * Power amplifier: | ||
| + | * [[Revox A 722]] | ||
| + | |||
| + | |||
| + | * Quadro power amplifier: | ||
| + | * [[Revox A 724]] | ||
| + | |||
| + | |||
| + | == Pictures == | ||
| + | * Picture: Revox A 700 | ||
| + | [[Image:Revox A700 1.jpg]] | ||
| + | <gallery> | ||
| + | Picture:Revox A700 2.jpg | ||
| + | Picture:Revox A700 3.jpg | ||
| + | Picture:RevoxA700 4.jpg | ||
| + | </gallery> | ||
| + | |||
| + | |||
| + | == Reports == | ||
| + | * Detailed review with detailed measurements in "hifi-report 1974/75" (fono forum) | ||
| + | |||
== Links == | == Links == | ||
| − | [[ | + | [[Category:Tape machines]] |
Latest revision as of 04:40, 31 October 2019
Data[edit]
General
- Manufacturer: Revox
- Model: A 700
- Model series: 700 series
- Years of manufacture: 1973-1982
- Manufactured in: Germany/Switzerland
- Color: gray, aluminum, side panels: Walnut
- Remote control: Option
- Power consumption: 130 W max.
- Dimensions: 490 mm × 470 mm × 210 mm (W × D × H, horizontal)
- Weight: 23,5 kg
- Original price approx.: 3600 DM
Connections
- Number of stereo inputs:
- 2 × MIC (jack 6.3 mm): 0.15/1.8 mV at 6 kΩ balanced, floating.
1 × phono (cinch): 2.5 mV at 50 kΩ (RIAA)
- 2 × Aux (Cinch): 40 mV at 100 kΩ
- 1 × radio (DIN): 3 mV at 33 kΩ.
- Number of stereo outputs:
- 2 × Aux (Cinch): 1.55 V (6 dB) at 5 kΩ
- 1 × radio (DIN): 0.775 V (0 dB) at 10 kΩ
- 2 × headphones (jack 6.3 mm): max. 4.9 V at 100 Ω
Technical Data
- Max. Coil diameter: 26,5 cm (10,5")
Drive: 3 electr. controlled robust AC motors(direct drive)
- Tone motor via clock quartz reference (1.63840 MHz) phase-locked synchronized
- 2 winding motors
- Heads: 3
- Tracks: 2 or 4, depending on version
- Tape speeds: 9.5, 19 and 38 cm/s, ±0.1 %
- Slip: <0.1 %
- Synchronization fluctuations:
- Pitch fluctuations:
- at 38 cm/s >±0.06 %.
- at 19 cm/s >±0.08 %
- at 9.5 cm/s >±0.1 %
- Overall frequency response:
- at 38 cm/s : 30-22,000 Hz +2/-3 dB and 50-18,000 Hz ±1.5 dB respectively.
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:
- External voltage spacing:
- at 38 cm/s >65 dB
- at 19 cm/s >66 dB
- at 9.5 cm/s >63 dB
- Distortion factor: <0.6% (0 VU, 19 and 38 cm/s), <1% (0 VU, 9.5 cm/s),
- Equalization: NAB or CCIR
- Crosstalk attenuation: Mono: >60 dB, Stereo: >45 dB (1 kHz)
- Cancellation attenuation: ≥80 dB
- Premagnetization and cancellation frequency: kHz
Special equipment
- Mechanical:
- Indicator light for synchronous state of set speed
- Via FB variable speed (±7 semitones) possible
Electron. Electronic belt tension control with 2 inductive HF belt tension sensors
- Extremely precise tape time counter (minutes and seconds)
- Electrically:
- 4 balanced microphone inputs
- Built-in mixer for 2 selectable stereo channels
- On request also with CCIR equalization
Remarks[edit]
- The "big Revox" closes the gap between the amateur top class and the purely professional studio machines.
- Overload resistance of all inputs better than 40 dB
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 quite correct!
- Other models of the same series:
- Revox A 77
- Revox A 700
- Revox B 77
- Revox PR 99
- Other models in the 700 series:
- [[Preceiver:
- Revox A 720
- Power amplifier:
- Revox A 722
- Quadro power amplifier:
- Revox A 724
Pictures[edit]
- Picture: Revox A 700
- Picture:Revox A700 2.jpg
- Picture:Revox A700 3.jpg
- Picture:RevoxA700 4.jpg
Reports[edit]
- Detailed review with detailed measurements in "hifi-report 1974/75" (fono forum)