Grace G-747
Most of what's recorded about the Grace G-747 comes from one place: Audio magazine's January 1986 equipment profile. It reviewed the arm together with Grace's F-9E Super cartridge (Audio, January 1986, p.94). The G-747 is a tonearm. Beyond that review, the Archive's documentation on it is thin.
Audio found the G-747 and F-9E combination reproduced the stereo image and sense of space exactly as they existed on the recording (Audio, January 1986, p.96). The arm used a thin, straight tonearm pipe that rang very little when tapped. A separate headshell made cartridge changes easy - only the tracking force had to be reset. Tracking force was set by static balance. You rotated the counterweight until the desired number on the ring lined up with a red mark, adjustable in 0.1-gram steps. The reviewer found the calibration very accurate. The review's spec block listed an angle of rotation of roughly 80°, a plug-in molded output cable with 86 pF capacitance, and a recommended total load capacitance of 200 pF (Audio (January 1986, p.94)). In the same profile the F-9E cartridge was priced at $200, with a $100 replacement stylus.
Audio also noted that Grace was among the cartridge and tonearm makers working on CD-4 discrete four-channel hardware in the early 1970s (Audio, January 1986, p.95). It closed by calling the moderate cost and high performance of the arm/cartridge combination a strong reason to audition it (Audio, January 1986, p.102).
Production dates and the G-747's original price are not documented in the sources the Archive has.
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