Technics SL-PS70 (c. 1990)
Documentation on the Technics SL-PS70 is thin. The one solid record is a feature-length comparison in HiFi/Stereo Review (October 1990, p.64), which put the SL-PS70 in a group of top CD players for controlled listening tests. The test was built around the big conversion question of the day - whether a 1-bit DAC could beat a 20-bit multi-bit design. The SL-PS70 was one of the players used to find out.
The same issue's lab measurements (p.67) recorded a frequency response of +0.05/-0.29 dB from 20 Hz to 20 kHz, de-emphasis error of +0.09 dB at 16 kHz, and channel separation of 102.9 dB. Those are respectable figures for the early-90s field.
Beyond that review, the record goes quiet. No original price, production years, or full spec sheet have turned up in the available sources. If you own an SL-PS70 and can supply facts from the manual or brochure, the archive would welcome them.
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