Switzerland

Revox is a brand that specializes in high-end audio equipment, including speakers, amplifiers, and audio players.

Revox

The Revox A 77 MK IV is a high-quality reel-to-reel tape recorder introduced in the 1970s. It is celebrated for its robust construction and versatility. The machine is capable of operating at multiple speeds, typically 3.75 and 7.5 inches per second, allowing for various recording applications, from high-fidelity music to professional uses. The A 77 MK IV features a 4-channel playback capability, making it suitable for creating and reproducing stereo and quadraphonic recordings. It includes a wide range of controls such as transport functions (play, rewind, fast-forward, stop), bias adjustment, and recording level meters. The tape transport mechanism is built to provide precise handling of both 1/4 inch and 1/2 inch tape formats. The unit's audio performance is characterized by low distortion, a frequency response of approximately 20 Hz to 20 kHz, and a signal-to-noise ratio that reaches impressive levels. Its design is compact for a reel-to-reel machine, making it easier to fit into various audio setups. The MK IV variant may include improvements in internal circuitry and component quality compared to its predecessors, enhancing overall playback fidelity.

A 77 MK IV

by Revox

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