Ampex 767
Ampex
USA
Tape Deck Details
Number of Motors
Number of Heads
3
Head Configuration
Wow & Flutter
0.2% at 7½ ips
Signal-to-Noise [dB]
46
Dimensions [mm]
Weight [kg]
20
Year built
Head Composition
Permalloy
Equalization
Frequency Response
70Hz to 15kHz at 7½ ips
Speed
1⅞, 3¾, 7½
Max Reel [inch]
7
Tracks
1/4 Rec/PB
Price
Additional Information
The Ampex 767 reel-to-reel tape deck is a professional four-track, two-channel stereo recorder introduced in the late 1960s as part of Ampex’s 700 series. It was designed to offer high-quality stereo recording and playback with robust solid-state electronics targeted at serious home users and semi-professional applications.
Technical Overview of the Ampex 767
Track and Channel Configuration: Four-track, two-channel stereo/monaural system using 1/4-inch tape, allowing stereo recording on alternating tape tracks.
Tape Speeds: Supports three standard speeds—3 3/4 ips, 7 1/2 ips, and 15 ips (inches per second), offering a balance between recording duration and sound quality.
Frequency Response: Approximately 70 Hz to 15 kHz at 7 1/2 ips, providing clear high-fidelity audio typical of Ampex decks in this range.
Signal-to-Noise Ratio: Around 46 dB, adequate for high-quality audio recording and playback.
Wow and Flutter: 0.2% at 7 1/2 ips, indicating stable tape transport and minimal speed variation.
Inputs and Outputs: Line input sensitivity of 150 mV and microphone input sensitivity of 1.7 mV; output level of 0.7 V; output power rated at 8 watts, typical for deck amplifiers with integrated speakers or monitoring systems.
Physical Dimensions and Weight: Measures 23.75 x 14 x 8.5 inches and weighs approximately 44 lbs, reflecting a robust and solid construction.
Construction and Reliability: Though mechanically robust and offering excellent sound quality, it was known for some mechanical issues related to large O-ring belts that required replacement for optimal reliability.
Market Position: This model served as Ampex’s entry-level home/consumer stereo tape deck with professional-grade sound and build quality, nestled below their high-end studio models yet maintaining Ampex’s trusted reputation.
Summary
The Ampex 767 is a well-engineered, four-track stereo reel-to-reel tape deck with three selectable tape speeds, delivering high-fidelity audio suitable for professional and advanced home listening. Its solid-state electronics, good frequency response, and mechanical stability made it a popular model in the late 1960s and early 1970s. The unit’s issues with drive belts are notable but can be mitigated with maintenance or upgrades. Overall, it balanced quality and affordability within Ampex’s consumer-focused 700 series