ARC D-52 (dates not documented)
Very little is documented about the ARC D-52. No reviews, manufacturer literature, or specification sheets have surfaced in the Archive's research; what survives of the record is a handful of classified advertisements in Audio magazine.
Those ads at least show the D-52 being sold as ARC equipment, in classified listings that also carried models like the D-90 and D-110B. A classified in Audio (January 1982, p.79) offered a mint-condition D-52 with its original carton at $550, and separately listed a "D-52 (B)" described as new with carton. Another from September 1981 (p.89) asked $565 for an excellent-condition unit. By late 1982, new "D-52(B)" examples were advertised at $695 (Audio, September 1982, p.72) and $750 (Audio, October 1982, p.115).
The ads consistently distinguish the plain D-52 from a "D-52 (B)" version, but what the (B) signified is not documented. Production years, the unit's exact function, and full specifications remain unrecorded in the available sources.
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