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AR3A speakers. Have installed 3a improved crossovers. Sound fantastic. Cabinets solid but scuffed. Can deliver to Perth for $50.Tweeter OEM from Simply Speakers, which are no longer available. Midrange and woofers original. Have original 3a crossovers plus one spare. Positioned on 60cm sand fille...
At A$850, this sits well below your A$1,063 25th percentile and far under the A$1,227 median, so it reads as a strong buy in the current used market. Against recent comparables, that is the sort of gap that makes a clean example worth moving on quickly rather than negotiating hard.
The appeal is the classic AR-3a recipe: big, room-filling scale, smooth midrange, and a presentation that still has a lot of cachet with vintage hi-fi people. If the drivers are healthy and the cabinets are decent, the upside is obvious because good examples have a loyal following and are not getting easier to find; at this level, a well-kept pair is the kind of purchase that feels sensible rather than speculative.
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.
