TEAC A-3300SR

The TEAC A-3300SR is a semi-professional 4-track, 2-channel stereo reel-to-reel tape deck from the 1970s, featuring auto-reverse playback for convenient continuous operation.

Track and Head System

• 4-track, 2-channel stereo/monaural quarter-track format.

• Three heads: erase, record, and playback heads made of high-hardness permalloy.

• Auto-reverse playback switches between tracks 1 & 3 and 2 & 4 automatically, allowing seamless tape direction changes.

Tape Transport and Motors

• Three motors: two reel motors and one capstan motor ensuring stable tape tension and precise speed control.

• Tape speeds: 3¾ ips (9.5 cm/s) and 7½ ips (19 cm/s).

• Supports reels up to 10.5 inches in diameter.

• Wow and flutter: approximately 0.06% at 7½ ips.

Performance Specifications

• Frequency response: approximately 25 Hz to 24 kHz at 7½ ips (±3 dB).

• Signal-to-noise ratio: about 58 dB.

• Total harmonic distortion: approximately 1%.

• Crosstalk: 60 dB at 1 kHz.

• Stereo separation: around 50 dB.

Inputs and Outputs

• Line input: 100 mV sensitivity.

• Microphone input: 0.25 mV sensitivity.

• Line output: 0.3 V nominal.

• Connectors: RCA type for line and mic inputs/outputs.

• Headphone output included.

Additional Features

• Large, illuminated VU meters for precise level monitoring.

• Solid metal chassis with wooden side panels in some versions.

• Logic-controlled push-button transport operation.

• Compatible with large reels (up to 10.5 inches) and multiple tape speeds.

• Durable mechanical design with easy maintenance access.

• Optional accessories include remote control and dust cover.

Physical Specifications

• Dimensions: approximately 440 mm (W) x 440 mm (H) x 235 mm (D).

• Weight: about 20 kg (44 lbs).

This model shares much of its design and performance characteristics with the TEAC A-3300 and A-3300S, but adds the practical benefit of auto-reverse playback, making it a popular choice among vintage tape enthusiasts.