Akai 280 D-SS

Data

General

• Manufacturer: Akai
• Model: 280 D-SS
• Type: Auto-Reverse Quadrophonic Coil Unit
• Years of manufacture: 1973 - 1975
• Made in: Japan
• Color: front aluminum, sides walnut
• Remote control: yes
• Power consumption: 130 W
• Dimensions: 435 x 505 x 250 mm (WxHxD)
• Weight: 21,5 kg
• Original price approx.: 2'499 DM

Connections

• Number of inputs:
  • 4x Microphone: (6.3mm jack) 0.5 mV / 10 kOhm
  • 4x Line In: 100 mV / 150 kOhm
  • 4x Line In DIN switchable:
    • Low: 10 mV
    • High: 60 mV, 400 mV
• Number of outputs:
  • 4x Line Out: 1.23 V / 100 Ohm
  • Line Out DIN: 0.775 V / 100 Ohm
  • 2x headphones 30 - 40 mV / 8 Ohm

Technical Data

• Max. Coil diameter: 18 cm
• Drive: 3 motors, 1x servo control with electronic speed switching, 2x external rotor motors for winding

Heads: 4 sound heads, 2 separate recording / playback heads, 2x ferrite for erasing

• Tracks: 4
• Tape speeds: 9.5 and 19 cm/s
• Slip:
• Synchronous oscillations:
  • at 9.5 cm/s: < 0.15 %.
  • at 19 cm/s: < 0.10 %
• Total frequency response:
  • at 9.5 cm/s: 30 - 20'000 Hz, ± 3 dB
  • at 19 cm/s : 30 - 26'000 Hz, ± 3 dB
• Signal-to-noise ratio: > 50 dB
• Distortion factor:
  • at 19 cm/s: < 1.5 %
• Equalization: NAB
• Crosstalk attenuation:
• Premagnetization and erasure frequency: 110 kHz
• Rewind time: 75 seconds for 350 m

Special Features

• Quadro and stereo operation possible
• Auto-Reverse continuous operation
• Automatic rewind in quadro mode
• Rear band control
• Multiplay
• Four mixable inputs

Comments

• Other models in the same series:
• Akai GX-270 D-SS
• Akai GX-280 D-SS
• Akai GX-400 D-SS
• Akai GX-630 D-SS
• Akai 280 D-SS
• Akai 1730 D-SS

Pictures

• Excerpt from brochure: Akai 280 D-SS