The ZX-7 features Nakamichi Discrete Head Technology in which record, play and erase heads are mechanically as well as electrically independent.
Mechanical independence reduces crosstalk and allows each head to be contoured for smoothest response.
Of even more importance, the mechanically independent heads of the ZX7 can be adjusted individually for proper azimuth and allow the user to readjust record-head azimuth to correct for differences in tape path from cassette to cassette.
Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.8 cm/s
Heads: 1 x record, 1 x playback, 1 x erase
Motor: 1 x reel, 1 x capstan
Tape Type: type I, CrO2, Metal
Noise Reduction: B, C
Frequency Response: 20Hz to 21kHz (Metal tape)
Signal to Noise Ratio: 72dB (dolby C)
Wow and Flutter: 0.04%
Total Harmonic Distortion: 0.8%
Input: 50mV (line)
Output: 1V (line)
Dimensions: 450 x 135 x 300mm
Weight: 9.5kg
Year: 1981
Price: USD $1250 (1981)