ARC

Browse ARC vintage synthesizer equipment in the Vintage Technology Archive.

Power Amplifiers

• D-90 — ARC D-90 — little-documented Audio Research amplifier from the early 1980s, known only from classified ads in Audio magazine.

Synthesizers

• 3074 — Nothing is documented about the ARC 3074. The model is absent from the period equipment directories, service literature.

Unknown

• 100A — Little is documented about the ARC 100A. No verified specifications, production years, original price, or design details survive in the available record.
• D-100A — ARC D-100A. Nearly undocumented; known only from a single 1981 classified ad listing a mint example at $625. Likely an Audio Research power amplifier.
• D-110 — ARC D-110 power amplifier from Audio Research Corporation. Little documented beyond classified ads in Audio magazine (1980-1983) listing used prices alongside D-90, D-150, and other ARC models.
• D-110B — ARC D-110B power amplifier. Virtually undocumented; classified ads from 1980 suggest a sibling D-110 model sold for $1250–$1700.
• D-350 — ARC D-350 power amplifier from Audio Research Corporation. Known only from two classified ads in Audio magazine (1978-1979) listing prices of $1,875 and $1,995. No specifications or documentation surv…
• D-51 — ARC D-51 — an obscure and virtually undocumented model. A single 1982 classified ad listing at $495 is all that survives.
• D-70 — ARC D-70 vacuum-tube power amplifier from Audio Research, circa 1984. 65 W/ch into 16 ohms, Class AB. Little documented beyond period magazine listings.
• D-75A — ARC D-75A power amplifier. Little is documented — survives only in period classified ads listing it alongside sibling models. Most specs unconfirmed.
• D-76 — ARC D-76 amplifier (circa 1979–1981). Little documented — classified ads confirm Audio Research produced this model in D-76A and D-76G variants.
• D-76A — ARC D-76A, a little-documented tube power amplifier from Audio Research Corporation, known only through vintage classified ads in Audio magazine circa 1979-1988.
• SP-10 — ARC SP-10 tube preamplifier from Audio Research. 1984 top-of-the-line model with 6DJ8 triodes and Wonder Cap capacitors. $3,450 list price.

Other Models

• D-52 — ARC D-52: an obscure, little-documented ARC model. The surviving record is 1981-82 classified ads in Audio magazine, with prices around $550-$750.
• SP-3A1 — ARC SP-3A1 preamp from Audio Research — little documented beyond an Audio (Oct 1975) preamp roundup listing and 1981 used prices.
• SP6A — ARC SP6A: a little-documented Audio Research component known only from classified asking prices in Audio magazine, 1979–1981.