Country of Manufacture:Japan
Original Price: $740
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 10.5"
Number of heads: 3
Dimension: 465 x 440 x 240mm
Head Composition: Ferrite
Head Configuration: Stereo
# Motors: 3
Voltage(s): 110-120v, 220-240v
Frequency Response:15 ips: 20Hz to 28kHz at 15 ips ( 3dB) (PRO version only)
Wow and Flutter:less than 0.09% at 7.5 ips (less than 0.0% at 15 ips for PRO version)
Signal-to-Noise Ratio:57 dB at +3 dB (GX-630D) 67 dB (GX-630DB) 60 dB (GX-630D-PRO)
Sound quality rating:7 / 10
Long-term reliability rating: 8 / 10
Weight: 19 kg.
One of the most popular of the GX-600 series, the GX630D (despite its model number) is an earlier version of the GX-620 and the 10½ reel” version of the GX-270D, without auto-reverse functionality.
The capstan motor was of the direct drive type and provided two speeds, 3¾and 7½ ips.
A Dolby version, the GX-630DB was available a little later, and also a half- track version, the GX-630D/PRO. This ‘PRO’ version had a larger diameter capstan shaft and provided the higher speeds of 7½ and 15 ips.
Dimensions: 18.3 x 17.3 x 9.5″ (465 x 440 x 240mm) / Weight: 42.9 lbs (19.5kg) / quarter-track stereo (630D-PRO was half-track stereo)
All transistors and capacitors changed. Price I payed for (in 2020) was together with 8 Basf metal reel tapesI own three tape recorders and this one is by far the best because,,, and I would not hesitate to recommend to anybody