RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
US$29 looks like a good buy for an Acoustic Research MS315 if it’s complete and the term “speaker cable” is accurate. AR’s Master Series cables were sold as heavier-gauge, oxygen-free/silver-coated copper designs, and similar AR MS320-era cables are still remembered as decent, well-made speaker leads rather than throwaway wire.
That makes this worthwhile mainly as a practical upgrade or tidy replacement: thick cable, solid connectors, and enough build quality to outlast generic zip cord. At this price, the big thing to check is simply length, termination type, and condition of the plugs/ends, since value here comes from usable, intact hardware more than collectability.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Acoustic Research (AR) emerged from Cambridge, Massachusetts, in 1954, founded by audio pioneer Edgar Villchur and his student Henry Kloss. Villchur, an inventor, researcher, and educator, developed the groundbreaking acoustic suspension loudspeaker principle, patented in 1956, which enabled compact speakers with deep, distortion-free bass. Their debut AR-1 model, unveiled at the 1954 New York Audio Show for $185, revolutionized the industry by shrinking enclosure sizes by up to 75 percent while delivering superior performance, setting the stage for AR's rapid ascent.
The brand focused primarily on loudspeakers, pioneering acoustic suspension designs like the AR-1, AR-2, AR-3 series, and compact bookshelf models such as the AR-4, which appealed to students and families. AR expanded into turntables, including the enduring AR Turntable still prized by vinyl enthusiasts, alongside other stereo components. This emphasis on innovative speakers with flat response, wide dispersion, and extended bass defined their catalog, prioritizing engineering over aesthetics.
AR commanded peak dominance in 1966 with over 32 percent of the U.S. loudspeaker market—the largest share any hi-fi company has achieved—earning reverence for natural sound reproduction and robust build quality. Now owned by VOXX and shifted toward lower-end accessories, its vintage products remain collector icons, embodying mid-century high-fidelity excellence for discerning buyers seeking timeless accuracy.
See all Acoustic Research listings on RADAR.
