Category:Mid High Fidelity (most Japanese recorders fall into this category)
Country of Manufacture:Japan
Release dates:1979 - 1984
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 1 (PB)
Head Composition: Permalloy
Head Configuration: Stereo
Frequency Response:( 3dB): 7½ ips: 30Hz - 28kHz 3¾ ips: 30Hz - 20Khz
Wow and Flutter:0.03% at 7½ and 0.04% at 3¾ ips (NAB weighted)
Signal-to-Noise Ratio:63dB (3%THD level, weighted)
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The X-7 and X-7R were smaller, 7″ reel capacity versions of the X-10 series, which could accommodate 10½ ” reels. They were three-motor, two speed tape decks available in two versions:
X-7: quarter-track stereo, single direction record andplayback, three heads, 7½ and 3¾ ips.
X-7R: quarter-track stereo, bi-directional record and playback, three heads, 7½ and 3¾ ips
Features common to all were: dual capstan drive, 4-digit tape counter, mic/line mixing capability, record mute function button, two large, base-lit VU meters, ±6% speed pitch control, timer start and track record select for recording one track at a time (multi-tracking).
Stereo channel separation: 50dB at 1,000Hz / Harmonic distortion: (overall) 0.8% at 1,000Hz normal operating level / Rewind speed: 150 seconds for 1800ft / Inputs: Line: 60 mV, 50 kohms Microphone: 0.25mV / -72dB (200 ohms or more) / Outputs: Line: 0.45 V for load impedance of 10 kohms or more Headphones: 8 ohms / Dimensions: 17 x 14.3 x 10.3″ (432 x 364 x 262mm) / Weight: 39.7 lbs (18 kg) / quarter-track stereo, bi-direction record and playback (X-7R)