SME STR-112
Surviving information on the SME STR-112 is thin. Most period references call it the CBS STR-112, a phono cartridge test record from CBS Technology Center. Audio (October 1985, p.363) listed it in a test-record round-up alongside the companion STR 100, and noted a square-wave band and graduated-track sections. It was a working tool, not a consumer record. Audio used it on the test bench from at least 1981 through 1990. In May 1981, Audio (May 1981, p.50) reported that an SME/Shure combination tracked band 5 of the STR-112 at 1.1 g with no sign of distress, with sidethrust compensation set at 1.2. By September 1990, Audio (September 1990, p.88) was still using the record's 10.8 kHz tone-burst and 1 kHz square-wave bands to photograph tonearm impulse response. It observed that the SME arm's constrained-mode damping produced low output and rapid decay.
That is the whole documented story. No production years, catalog number, or original price have surfaced in the sources available to the Archive.
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