4CH / 2CH Compatible Stereo Tape Deck (1976-79)
Track system: 4-track, 4-channel, stereo/multi channel system
Heads: 1 x GX record, 1 x GX playback, 2 x erase
Motor: 2 x reel drive, 1 x capstan
Reel size: up to 10.5 inch reel
Tape speeds: 3 3⁄4 7 1⁄2 ips
Wow and flutter: 0.06% (7 1⁄2 ips)
Frequency response: 30Hz to 21kHz (7 1⁄2 ips)
Signal to Noise Ratio: 54dB
Total harmonic distortion: 0.5%
Input: 70mV (line), 0.25mV (mic)
Output: 0.775V (line)
Semiconductors: 65 x transistors, 63 x diodes, 4 x IC
Dimensions: 440 x 527 x 240mm
Accessories: connection cords, reel hub adaptors, empty reel
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Reviewed Oct 20th, 2013 by electron286
Very nice 4 channel deck! Not quite as good electrically as the 2-channel version however (GX-630D), but still one of the best 4-channel reel to reel decks that was produced.