ART 210A

Almost nothing is documented about the ART 210A. No separate specifications, design details or production history have surfaced in period sources or current research.

What little is known comes from a period directory listing for the AS 210A in High-Fidelity (1976, p.118). It calls the speaker similar to the Sylvania GTE 210. The GTE 210 was an air-suspension speaker with a 10" woofer and a 1½" dome midrange/tweeter. The crossover was at 1,500 Hz, and there were two upper-midrange level switches. Impedance was 8 ohms, power handling was 10-100 watts, and frequency response was 33-15,000 Hz ±3 dB. It measured 24" H × 15¾" W × 11¼" D and weighed 51 lbs. The 1976 retail price was $119.95. Whether the ART 210A shares these exact specs is uncertain. The record only says “similar.”

Beyond that listing, no manuals, reviews, advertisements or owner reports have been found. The ART brand (Applied Research and Technology) is known for a few other models, such as the EPA-100 tube conditioner. The 210A's place in the product line remains unclear.