Revox - A77 Mk2 Reel to reel deck 26 cm

Refurbished/cleaned all potentiometers and replaced capacitors, including an extra plexiglas cover for dust and an 18cm coil.

The Revox A77 MKII is one of the most iconic and appreciated reel recorders, produced by Studer-Revox in the 1970s and 1980s. This model is considered a milestone in the history of reel recorders, loved by both audiophiles and sound professionals for its audio quality, durability, and versatility.
Here is a more detailed description of the Revox A77 MKII:
Main features
Design and construction
The Revox A77 has a simple yet elegant design, typical of high-quality audio equipment from the 1970s. The construction is solid and robust, with a metallic finish and wood panels (in higher-end models).
It has a compact form for a reel recorder, with a front control panel that includes well-arranged knobs and buttons for easy operation.
System with 2 or 4 tracks.
The A77 MKII is available in 2- or 4-track configurations. This means you can record on 2 or 4 separate channels (stereo or quadraphony). The 4-track model is more versatile, but the 2-track models are more commonly used for stereo recording.
Recording speed
Supports recording speeds at 19, 9.5, and 38 cm/s, which are standard for high-quality reel-to-reel tape recorders. The highest speed (38 cm/s) offers the best audio quality but obviously requires more tape space.
Heads and audio quality.
The Revox A77 MKII is known for the quality of its magnetic cartridge. The cartridges are of high quality and designed to minimize distortion, even at high volume levels.
The sound quality is impeccable, with excellent frequency response and background noise minimized to a minimum.
Control functionalities
The MKII model includes auto-stop, auto-reverse (in some models), and options for recording in manual or automatic mode.
It also has an excellent dynamic response, allowing for recording and reproducing over a wide range of sound levels without distortion.
Recording and playback
It can be used to record and play back on 7 or 10.5-inch tapes, depending on the user's preferences and the tape length requirements.
Wide impedance range.
It has broad compatibility with various tape impedances, making it highly versatile for different types of audio recordings.
Compatible tape
The Revox A77 MKII can be used with 1/4" tapes and generally supports tapes with speeds of 7.5, 15, and 30 ips (inches per second).
Audio performance and quality
Frequency response: 20 Hz – 22 kHz, which makes it capable of capturing very precise sound details.
Total Harmonic Distortion (THD): very low, generally less than 0.5%.
Signal-to-noise ratio: very favorable, with good performance even at low recording levels.
Strengths:
Reliability: It is known for its incredible robustness and long-lasting durability, often used in professional studios.
Sound quality: The sound is detailed and faithful, ideal for high-quality recordings.
Versatility: Supports various track configurations and speeds, allowing adaptation to different needs.
Ease of use: the controls are clear and well positioned, although it takes a bit of practice to make the most of it.
Weak points
Weight and size: Like many reel-to-reel tape recorders of that era, it is quite heavy and bulky.
Maintenance: Being an analog device, it requires regular maintenance (head cleaning, lubrication, etc.).
Cost: When it was new, the Revox A77 was a high-end device, and today used models can be expensive, especially if well preserved.