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This is a buyer’s market for older Acurus pieces, and US$380 for a DIA-150 looks fair to good rather than cheap, assuming it’s fully working. I can’t pin down a clean percentile from the available data, but the model was a serious US$1,500-class integrated in its day, with a stout 150 Wpc/200 Wpc amp section, so the asking price is reasonable if the unit is clean and original.
What makes it worth a look is the Acurus sound: lots of drive, a high-current feel, and enough grip to wake up tougher speakers without sounding fussy. If the seller can confirm smooth channel balance, quiet controls, and no service issues, this is the kind of amp that can be a long-term keeper; just make sure the remote, caps, and input switching are behaving, since age and unknown condition matter more here than with a newer piece.
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.
