In rare mint condition, dust free in and outside. Heads are as new. Classic Vintage Revox A-77 MKII 4-track 26cm reel recorder with 3 heads for real-time monitoring. Direct drive 3 motors! Nice woodcase. Including 2 big 26 cm reels. Including 1 old tape for test/show. Best recording results with new tape! The old RIFA’s are replaced. Speed checked exactly good. Recording and playback tested and sounds perfect. Including original hard to find power cord. Including manual Pictures are leading Carefully shipped but very heavy! No amplifiers on board. Manufacturer: Revox Model: A 77 Mk I MK II, MK III and Mk IV Years of manufacture: 1967-1981 Manufactured in: Germany / Switzerland Colour: grey, silver, housing walnut Remote control: Cable remote control 5 m or 10 m (accessories) Power consumption: 70 W / with power amplifiers max. 100 W Dimensions, horizontal): 413 mm × 359 mm × 215 mm (W × H × D) Weight: approx. 15 kg Original price approx.: 1700 DM (list price) Connections Number of outputs: 3 2 × output (Cinch): 2.5 V / Ri 600 Ω 1 × Radio (DIN): 1.2 V / Ri 2.5 kΩ 1 × Phones (jack 6.3 mm): 200-600 Ω Number of inputs: 3 2 × MIC (jack 6.3 mm / Cinch) Low: 0.15 mV / 50-600 kΩ / High: 2.5 mV / up to 100 kΩ 2 × Aux (Cinch): 35 mV at 1 MΩ 1 × Radio (DIN): 2.5 mV at 33 kΩ Technical Data Max. Coil diameter: 26.5 cm (10.5") Drive: 3 external rotor AC motors (direct drive) Tone motor controlled via highly stable oscillator and tachogenerator 2 asynchronous winding motors Heads: 3 Tracks: 2 or 4, depending on version Tape speeds: 9.5 and 19 or 19 and 38 cm/s, depending on the version, ±0.2 Slip: 61 dB at 19 cm/s >61 dB at 9.5 cm/s >58 dB External voltage spacing: n.a. Distortion: 60 dB, Stereo: >45 dB (1 kHz) Erasure attenuation: ≥80 dB Premagnetization and erasure frequency: 120 kHz Special Features Additional plug-in power amplifier 2 × 8 watts at 8 Ω; (accessories). Versions with wooden cabinet, case and as built-in chassis. Versions with Dolby-B-NRS , ORF (studio version HighSpeed , symm. In/Out)