
Revox A77 MKIII
Revox
Switzerland

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.