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Are you looking for a bargain on a basic installation amplifier? At USD 75, this is a strong deal: it sits below the comparable-listing 25th percentile of USD 100 and well under the USD 193 median. Even allowing for its age and modest output, the price leaves plenty of room for value if it is working properly.
The A800 is a purpose-built subwoofer amplifier, suited to driving a compatible passive sub in a custom-install or home-theater system. Its 90-watt, 4-ohm output is not extravagant, but it is appropriate for smaller or efficient subwoofer setups, and the straightforward design can be useful when you need dependable bass amplification rather than modern features. Confirm that it powers up cleanly, the fuse is present, and there is no hum, distortion, or intermittent output; if those basics check out, this is an easy buy at USD 75.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sonance is an American architectural audio brand founded in the early 1980s by Scott Struthers and Geoff Spencer in Southern California. The company emerged from a simple but powerful idea: that high‑fidelity sound should not compromise interior design. In 1982, Sonance introduced the world’s first in‑wall loudspeaker, effectively creating the architectural speaker category and establishing a legacy built on innovation and discretion.
Today, Sonance is best known for in‑wall and in‑ceiling loudspeakers, outdoor audio systems, and multi‑room audio solutions, rather than amplifiers, turntables, DACs, or headphones. Its product range includes residential and commercial speakers, volume controls, and related electronics designed to blend seamlessly into walls, ceilings, and outdoor environments. The brand’s “degrees of invisibility” philosophy emphasizes clean aesthetics, flexible installation, and consistent performance across diverse spaces, from luxury homes to commercial venues.
Sonance occupies a strong position in the mid‑to‑high‑end custom‑installation market, widely recognized and frequently awarded in architectural and outdoor audio. It is a go‑to choice for integrators, architects, and design‑conscious clients who prioritize both performance and visual subtlety, rather than visible hi‑fi hardware.
See all Sonance listings on RADAR.
