TEAC A-2500

The TEAC A-2500 is a 4-track, 2-channel stereo reel-to-reel tape deck featuring automatic reverse playback, produced in the 1970s. It offers reliable analog tape performance with user-friendly features suitable for home audiophiles and semi-pro applications.

Track and Head System

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

• Three heads: erase, record, and playback heads.

• Auto-reverse playback allows continuous operation without manual tape flipping.

Tape Transport and Motors

• Two motors: one capstan motor and one reel motor providing smooth, steady tape transport and rewind with optimum tension.

• Tape speeds: 3¾ ips (9.5 cm/s) and 7½ ips (19 cm/s) with ±0.5% speed accuracy.

• Supports reels up to 7 inches (Type 17 and Type 12 reel sizes).

• Wow and flutter: approximately 0.12% at 7½ ips.

Frequency Response and Sound Quality

• Frequency response typically covers the standard range for reel-to-reel decks of its class (exact figures not specified but expected up to ~20 kHz at 7½ ips).

• Signal-to-noise ratio: approximately 50 dB.

• Total harmonic distortion and crosstalk figures not explicitly listed but consistent with mid-1970s semi-pro decks.

Inputs and Outputs

• Microphone input sensitivity: 0.3 mV.

• Line output: 0.3 V.

• RCA connectors for line-level inputs and outputs.

Additional Features

• Record pause control and bias current control for optimized recording quality.

• Automatic reverse mechanism eliminates the need to flip reels manually.

• Solid construction with smooth motor operation for long life and reliable tape handling.

• 4-digit mechanical tape counter for position tracking.

• Compatible with NAB equalization standards.

Physical Specifications

• Reel size: up to 7 inches.

• Tape speeds: 3¾ and 7½ ips.

• Weight and dimensions typical for mid-size reel decks (exact figures vary by source).