Akai GX 215D

The Akai GX-215D is a solid-state reel-to-reel tape deck produced between 1977 and 1980, aimed at the consumer to semi-professional market. It is known for its robust construction, reliable tape handling, and good overall audio performance for its class.

Technical Overview

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

• Heads: One GX playback head, one GX record head, and one erase head. The GX heads use Akai’s special Glass & X’tal Ferrite technology, known for durability and consistent performance.

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

• Reel Size: Supports reels up to 7 inches diameter.

• Wow and Flutter:
  Less than 0.09% RMS at 7½ ips
  Less than 0.18% RMS at 3¾ ips

• Frequency Response:
  7½ ips: 30 Hz to 25 kHz (±3 dB)
  3¾ ips: 30 Hz to 19 kHz (±3 dB)

• Signal-to-Noise Ratio: Approximately 56 dB.

• Total Harmonic Distortion: Less than 1% (at 1 kHz, 0 VU).

• Motors: Three motors total—two eddy current reel drive motors and one 4/8-pole self-lubricating hysteresis synchronous capstan motor.

• Inputs:
  Microphone: 0.3 mV, 2.2 kΩ impedance
  Line input: 70 mV, 100 kΩ impedance
  DIN connector available

• Outputs:
  Line output: 0.775 V at 0 VU, >20 kΩ impedance
  Headphone output: 50 mV into 8 Ω

• Other Features:
  Auto-reverse playback and recording with fast direction switching.
  Digital tape counter displaying minutes and seconds.
  Tape type selector for bias and equalization adjustment.

• Power Requirements: Various models support 110/120, 220, or 240 V AC at 50/60 Hz.

• Dimensions: Approximately 380 mm (W) x 390 mm (H) x 293 mm (D).

• Weight: About 15.7 kg.

Summary

The Akai GX-215D is a dependable analog reel tape deck that provides a good balance between consumer usability and semi-professional quality. Its high-frequency response and low wow and flutter make it capable of delivering clean and detailed analog reproduction, while the robust motors and GX heads ensure consistent tape handling and sound longevity. Though not a top-tier professional deck, it remains highly regarded among audiophiles and hobbyists for its sound quality and durable design.