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Revox A77 MKIII

Revox

Switzerland

Revox A77 MKIII

Tape Deck Details

Number of Motors

3

Number of Heads

3

Head Configuration

Stereo

Wow & Flutter

0.08% at  7½ ips - 0.1% at 3¾ at ips

Signal-to-Noise [dB]

62 dB (4-track, 19 cm/s

Dimensions [mm]

415 x 359 x 180

Weight [kg]

15.5

Year built

1971 - 1974

Head Composition

 Permalloy

Equalization

NAB, IEC

Frequency Response

20 kHz at 7½ ips

Speed

3¾, 7½, 15

Max Reel [inch]

10.5

Tracks

1/4 Rec/PB

Price

User

Consumer

Additional Information

The Revox A77 MKIII is a professional evolution of the highly regarded Revox A77 reel-to-reel tape recorder, produced in the early 1970s. It combines reliable electronics with precision mechanics, maintaining the core design principles that made the A77 a classic while refining performance and usability.


Key Technical Features


  • Transport System:
    The MKIII retains the robust 3-motor transport mechanism with two reel motors and one electronically regulated capstan motor. This design ensures precise tape handling, minimal mechanical wear, and stable tape speed control.

  • Tape Speeds:
    Supports three standard speeds: 3¾ ips (9.5 cm/s), 7½ ips (19 cm/s), and 15 ips (38 cm/s), accommodating a wide range of recording and playback needs.

  • Reel Size:
    Compatible with reels up to 10.5 inches (26.5 cm) in diameter.

  • Equalization:
    Supports NAB and IEC equalization standards for broad compatibility with professional and consumer tapes.

  • Output Power:
    Delivers 8 watts output power, suitable for driving external amplification or monitoring systems.

  • Dimensions and Weight:
    Measures approximately 415 x 359 x 180 mm and weighs about 15.5 kg (34 lbs), consistent with earlier A77 models.

  • Build Quality:
    Features a die-cast motor chassis and head support for mechanical precision and long-term stability, even under heavy use.

  • Electronics:
    Utilizes solid-state circuitry with a modular design for ease of maintenance and reliability.

  • Sound Performance:
    Offers low wow and flutter (0.08% at 7½ ips), a frequency response up to 20 kHz at 7½ ips, and a signal-to-noise ratio around 62 dB, delivering high-fidelity audio reproduction.

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