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At USD449, this Acurus DIA-100 MKII strikes me as a solid fair deal against the used market, where clean examples typically hover between USD300-600 depending on condition and provenance. Originally retailed around USD1000 new, these hold value thanks to their robust build and punchy 100Wpc delivery, but they're not screaming bargains unless pristine with the manual.
Before biting, verify the power switch—many suffer flickering LEDs from a design flaw that's tough to fix without surgery—and check those long front-to-back control rods for smooth action, as wear shows age. Insist on the original power cord and any remote if listed, plus test all inputs for clean passive preamp response, since source sensitivity matters with this high-gain design.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Acurus emerged in 1993 from Mondial Designs in the United States, positioned as a more accessible counterpart to the acclaimed Aragon brand. Created to deliver high-end performance through minimalist designs, premium specifications, and made-in-America manufacturing, it targeted the specialty AV market against pricier imports. In mid-2009, Indy Audio Labs—co-founded by audio engineer Rick Santiago and physicist Ted Moore—acquired Acurus, revitalizing its legacy after a period of dormancy under Klipsch ownership.
The brand specializes in power amplifiers, AV control processors, and immersive home cinema solutions, blending cutting-edge audio technologies with system setup and control features. Recent offerings like the compact M8X and M4X amplifiers underscore its focus on multi-channel power for media rooms, gaming, and high-performance theaters, all engineered with proprietary electronics, robust mechanics, and intuitive software.
Acurus holds a strong reputation for delivering high-end audio at competitive prices, earning trust among discerning buyers for its rock-solid durability, authentic sound reproduction, and five-year warranty. As a premium American marque under Indy Audio Labs in Indianapolis, it occupies a niche in custom installations, appealing to knowledgeable enthusiasts seeking reliable, USA-built excellence without boutique excess.
See all Acurus listings on RADAR.
