Sonus Gold Series II (c. 1979)
Nearly everything documented about the Sonus Gold Series II comes from one period review. Audio (July 1979, p.79) presented it as a “Blue Label Phono Cartridge,” with manufacturer’s specifications and a follow-up measurement page. Past that, the archive record is thin. Production dates, pricing and catalog history haven’t surfaced.
The manufacturer’s specs printed with that review call for 47 kilohms load resistance in parallel with no more than 400 pF per channel. They also note that CD-4 records require the Blue Label stylus. The accompanying report in Audio (July 1979, p.80) measured the cartridge at 5.5 g, with 332.5 ohms DC resistance, 131.3 mH inductance, and an optimum tracking force of 1.5 g. The reviewer described excellent transient response, good sonic clarity and no detectable coloration. It had no trouble tracking the high recorded levels on most direct-to-disc records of the period.
Known specs in brief:
- Recommended load: 47 kΩ in parallel with no more than 400 pF/channel
- Weight: 5.5 g
- DC resistance: 332.5 Ω
- Inductance: 131.3 mH
- Optimum tracking force: 1.5 g
- Optimum anti-skating: 2.5 g
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