Akai 4440D

The Akai 4440D is a high-quality solid-state stereo reel-to-reel tape deck from the early 1970s, known for its robust build and excellent sound performance.

Technical Overview

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

• Tape Speeds: Two speeds — 9.5 cm/s (3 3/4 ips) and 19 cm/s (7 1/2 ips) with ±2% accuracy

• Heads: Three heads — erase, record, and playback (high-quality permalloy heads)

• Maximum Reel Size: Supports up to 7-inch reels

• Wow and Flutter: Less than 0.12% WRMS at 19 cm/s

• Frequency Response:
  At 19 cm/s: 30 Hz to 24 kHz (±3 dB)
  At 9.5 cm/s: Typically slightly less, optimized by tape selector switch

• Signal-to-Noise Ratio: Approximately 50 dB

• Total Harmonic Distortion: Around 1.5% at 1 kHz, 0 dB recording level

• Tape Selector: 2-position switch providing optimal frequency compensation for different tape types—low noise tapes and wide range tapes

• Inputs/Outputs: Standard line and microphone inputs, RCA outputs

• Dimensions: Approximately 417 mm (W) x 450 mm (H) x 229 mm (D)

• Weight: Roughly 13.5 kg (29.7 lbs)

• Additional Features:
  Powerful, stable direct drive transport with dual lever mechanism
  Reliable tape tension control and smooth tape running
  Robust design widely regarded as reliable despite some issues with specific components like rotary lever cams on certain models
  Uses glass heads similar to the GX series for long-lasting wear resistance and consistent audio quality

Summary

The Akai 4440D stands out as a solid and reliable mid-70s reel-to-reel tape deck with excellent audio fidelity, especially at the 7 1/2 ips tape speed with frequency response extending up to 24 kHz. Its tape selector switch allows tailoring playback frequency response according to tape type, optimizing audio quality. The robust design and glass heads contribute to its reputation for longevity and great sound, making it a favorite among vintage tape enthusiasts and collectors.