Akai 1700

The Akai 1700 is a compact, tube-amplified reel-to-reel tape deck introduced in 1965. It is notable for being a versatile, high-performance unit that supports both stereo and mono playback, multiple tape speeds, and can be used horizontally or vertically.

Technical Overview

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

• Heads: 1 combined record/playback head; 1 erase head

• Tape Speeds: 1 7/8, 3 3/4, 7 1/2 ips (supports 15 ips with optional adapter)

• Motor: 2-speed induction

• Maximum Reel Size: 7 inches

• Frequency Response: 40 Hz to 18 kHz (at 7 1/2 ips)

• Wow and Flutter: ≤ 0.2% RMS at 7 1/2 ips

• Signal to Noise Ratio: 40 dB

• Total Harmonic Distortion: ≤ 2% (1 kHz, 0 VU)

• Crosstalk: 55 dB

• Output: 0.7 V (line)

• Speakers: 2 × 18 × 12 cm cone; music power 5W + 5W

• Amplification: Tube-based; uses 2 × 12AT7, 2 × 6BM8 tubes, 2 × 150D silicon diodes

• Equalization: NARTB characteristics during playback

• Fast-Forward/Rewind: 120–150 seconds for 370 m tape

• Special Features:
  Auto stop lever and instant stop lever
  VU meters (dual for both channels) & 3-digit tape counter
  FM multiplex ready
  Heat control system for stable performance
  Recording head with a 100 μ inch gap (high fidelity)
  Can be oriented horizontally or vertically

• Power Supply: 6-step switchable; 100–240 V AC, 50/60 Hz

• Power Consumption: 80 W

• Dimensions: 340 × 340 × 230 mm (WxHxD) with lid closed

• Weight: 15 kg (excluding accessories)

Notable Facts

• Released at ¥53,500 in Japan (1965).

• Designed for amateur users seeking professional-level results.

• Can record FM multiplex broadcasts; has record safety and instant stop features.

• Uses vacuum tubes for signal amplification, providing classic analog warmth.

• Included accessories: demonstration tape, empty reel, rubber adapters.

• Optional accessories: microphones, radio cords, splicing tape, accessory bag.