RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
FYI- This listing is for a SINGLE speaker, not a pair.The Acoustic Research AR-303 is a high-fidelity 3-way bookshelf/stand-mounted speaker produced in the mid-1990s (this one is from 1995) as a modern reimagining of the classic AR-3a, featuring a 12" woofer, 1.5" dome midrange, and .75" dome tweeter. Known for a warmer yet more aggressive sound than its predecessor, these speakers are highly sought after by collectors. If you need a SINGLE A303 (not a pair) this is a great one.Cosmetic Condition: This single speaker is in Excellent condition, with flawless cabinets, drivers and grille. It's a beautiful looking and sounding speaker.Design: Acoustic suspension, 3-way systemFrequency Response: 32Hz–20kHz Power Handling: 50W (min) to 250W (max)Impedance: 6.5Ω nominal (3.6 ohms minimum)Dimensions: 25"H x 15"W x 11"D Weight: 54 lbs eachService History: No service records were included from the prior owner. Here at the shop we did routine testing, cleaning and inspection.In the Milwaukee Area? Stop in our shop to inspect/demoSee our feedback and thank you for considering. All the gear we sell is packaged with great care for safe arrival in the condition advertised.
Generating expert take…
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.
