ReVox B77 Tape Deck 2 Track Vari Speed 3.75/7.5 IPS Pro Tested 100% Functional

ReVox B77 Stereo Tape Recorder — 2-Track, 3¾/7½ IPS — Professionally Serviced — Fully Operational

The ReVox B77 needs no introduction to the serious open-reel community, and this example is exactly what that reputation demands: a fully operational, professionally evaluated unit with confirmed head life and no deferred maintenance. This is the original B77 — not a MkII — representing the first iteration of what many consider the finest consumer/semi-pro reel-to-reel deck ever built.

This Unit

Professionally tested and evaluated. Confirmed fully functional in all respects — transport, record, playback, all switching and metering. Head life conservatively estimated at 75%+ with an even wear pattern. 2-track stereo configuration at 3¾ and 7½ IPS. Multivoltage design, currently configured for US current (120V). Cosmetic condition is very good overall, with only minor surface marks as documented in photos — nothing structural, nothing detracting from the look or function of the machine.

Includes power cable. Spindles will be removed and packed separately for shipment protection.

Ships worldwide, or local pickup can be arranged. Package will be large, heavy, and delicate, so shipping may be a significant cost. Quoted international rate is for shipping to Australia, the furthest location from my USA address. Please inquire for a shipping quote to your specific international address.

About the B77

Introduced by Studer-Revox of Switzerland as the successor to the acclaimed A77, the B77 set a standard for build quality and audio performance that remains a benchmark decades later. The chassis is aluminum die-cast — the same grade of construction used in Studer's professional studio machines — and the three-motor transport system features an electronically servo-controlled direct-drive capstan machined to one one-thousandth of a millimeter, hard chrome-plated and artificially aged for long-term stability. The result is speed consistency that borders on measurably irrelevant deviation. Tape heads are manufactured from Revodur alloy, Studer-Revox's proprietary magnetically soft, physically hard material, and are built to the same standard as those fitted to full professional Studer decks. Three-head configuration (erase, record, playback) enables true source/tape monitoring.

The B77 (original, no suffix) features logic-controlled transport — an advancement over the relay-based A77 — with the characteristic forward-leaning control panel layout that makes operation intuitive and editing convenient. The built-in splicing block and non-magnetic cutter are present on the front panel. The unit also supports audible tape shuttling for precise edit location.

Verified Specifications (2-Track)

• Tape speeds: 3¾ IPS (9.5 cm/s) / 7½ IPS (19 cm/s)
• Tape width: ¼ inch
• Reel capacity: Up to 10.5 inch reels
• Frequency response (3¾ IPS): 30 Hz – 16 kHz (+2/–3 dB); 50 Hz – 10 kHz (±1.5 dB)
• Frequency response (7½ IPS): 30 Hz – 20 kHz (+2/–3 dB); 50 Hz – 15 kHz (±1.5 dB)
• Signal-to-noise ratio: >64 dB at 3¾ IPS; >67 dB at 7½ IPS
• Wow & flutter: <0.1% at 3¾ IPS; <0.08% at 7½ IPS
• THD: <1% at 0VU (3¾ IPS); <0.6% at 0VU (7½ IPS)
• Crosstalk: >45 dB stereo; >60 dB mono at 1 kHz
• Equalization: NAB standard
• Inputs: Mic Lo (0.15 mV/2.2kΩ), Mic Hi (2.8 mV/110kΩ), Radio (2.8 mV/20kΩ), Aux (40 mV/220kΩ)
• Outputs: Line 1.55V/390Ω; Headphones 5.6V/220Ω
• Erase ratio: >75 dB at 7½ IPS
• Motors: 3 (two AC reel motors, one servo-controlled direct-drive capstan)
• Heads: 3 (erase, record, playback — Revodur alloy)
• Metering: Dual VU meters with LED peak indicators
• Power: Multivoltage (currently set to 120V US)
• Dimensions: 563 × 475.5 × 233 mm
• Weight: 17 kg (approx. 37.5 lbs)