Akai 4000 DB
Track system: 4-track, 2-channel, stereo/monaural system
Heads: 1 x record, 1 x playback, 1 x erase
Motor: 1 x 4-pole induction
Reel size: up to 7 inch reel
Tape speeds: 3 3⁄4 7 1⁄2 ips
Wow and flutter: 0.15% (7 1⁄2 ips)
Frequency response: 30Hz to 23kHz (7 1⁄2 ips)
Signal to Noise Ratio: 55dB
Total harmonic distortion: 1%
Crosstalk: 40dB
Input: 70mV (line), 0.4mV (mic)
Output: 0.775V (line)
Semiconductors: 27 x transistors, 2 x FET, 4 x IC, 17 x diodes
Dimensions: 406 x 325 x 196mm
Weight: 12kg