TEAC A-4300SX

The TEAC A-4300SX is a high-quality 4-track, 2-channel stereo/monaural reel-to-reel tape deck produced in Japan between 1976 and 1978, designed for home and semi-professional use.

• Track System:
  Auto-reverse, 4-track, 2-channel stereo/monaural system.

• Heads:
  Four heads total: 2 playback heads, 1 erase head, and 1 record head, enabling bi-directional playback and recording.

• Motors:
  Three motors:
  One dual-speed hysteresis synchronous capstan motor for precise tape speed control.
  Two eddy current reel motors for smooth tension and tape transport.

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

• Reel Size:
  Supports 5 or 7-inch reels.

• Frequency Response:
  Approximately 30 Hz to 28 kHz at 7½ ips (±3 dB).
  Around 30 Hz to 20 kHz at 3¾ ips.

• Wow and Flutter:
  0.06% at 7½ ips, indicating very stable tape speed and minimal pitch variation.

• Signal-to-Noise Ratio:
  58 dB (weighted).

• Total Harmonic Distortion:
  About 1%.

• Inputs and Outputs:
  Line input: 100 mV (50 kΩ)
  Microphone input: 0.25 mV (-72 dB)
  Line output: 0.3 V (load 10 kΩ or more)
  Headphone output (8 Ω)
  RCA and DIN connectors for input/output.

• Transport and Controls:
  Six feather-touch push buttons for transport control (play, stop, rewind, fast forward, record, reverse play).
  Special punch-in recording feature allowing recording while tape is in motion with safety interlocks.
  Automatic reverse doubles playing time by switching tape direction at reel ends.
  Counter repeat mechanism for repeated playback.

• Physical Dimensions and Weight:
  Dimensions: 440 x 488 x 216 mm (WxHxD)
  Weight: approx. 23 kg (50.6 lbs).

• Additional Features:
  Optional RC-140 remote control unit for transport operation up to 16 feet away.
  Solid-state electronics with low noise design.
  High-quality Permalloy heads for excellent audio fidelity.