Ampex ATR 700

The Ampex ATR-700 is a highly reliable, professional solid-state reel-to-reel tape recorder introduced in 1976, designed for use with 1/4-inch tape and compatible with 5, 7, or 10½-inch reels.

Key Technical Specifications:

• Track System: Available in full track, two track, and quarter track configurations, with capabilities of mono and stereo operation.

• Tape Speeds: Two selectable speeds per model—either 3¾ and 7½ ips, or 7½ and 15 ips.

• Tape Width: 1/4-inch tape format.

• Heads: Standard three-head design (erase, record, playback) with an option for a fourth playback/sync head for quadraphonic compatibility.

• Motors: Three motors—two reel motors and one direct-drive DC servo capstan motor for consistent tape speed.

• Wow and Flutter: Approximately 0.08% WRMS at 7½ and 15 ips, and 0.12% at 3¾ ips.

• Frequency Response: Around 40 Hz to 15 kHz ±2dB at 7½ ips and up to 18 kHz at 15 ips.

• Signal-to-Noise Ratio: 55 dB for four-track operation, 60 dB for two-track operation at 7½ ips.

• Controls: Pushbutton operations for record, play, rewind, fast forward, stop, edit functions with tape lifters and cue modes.

• Features: IC logic control for error-free operation, motion sensing logic for smooth transitions, rewind-stop memory switch, adjustable pitch control (±5%), and remote control capability.

• Dimensions: About 21 x 17 x 10 inches (533 x 356 x 254 mm).

• Weight: Approximately 62 lbs (28.2 kg).

• Connectors: Professional XLR inputs and outputs as opposed to consumer RCA.

Additional Notes:

• Manufactured in Japan by Teac/Tascam under Ampex design specification.

• Compatible with NAB and IEC equalization standards.

• Noted for smooth tape motion, easy editing capabilities, and high build quality.

• Suitable for professional and broadcast use, as well as high-end home audio setups.

The Ampex ATR-700 is a versatile, well-built professional reel-to-reel tape deck highly respected for its reliability, sound quality, and ease of editing. It combines precise servo-controlled tape transport with rich features for studio, broadcast, or serious audio applications. Its solid-state design and flexible tape format and speed options make it a durable and capable recorder suitable for a variety of analog recording needs.​

This model marks a key advance in analog tape technology, reflecting the transition to highly reliable and controllable solid-state designs in the mid-1970s.