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Stack Audio gear has a good reputation for clean, no-nonsense desktop power and tidy system integration, so this is the kind of used piece that can be a smart grab if it’s complete and healthy. At US$450, it sits well below your comparable-used 25th percentile of US$663 and far under the median of US$1,071, so this reads as a strong bargain rather than just a fair deal.
The upside here is straightforward: you’re getting a respected amp/power-supply stack with the bonus of the integrated DAC, which makes for an efficient, compact desktop setup and can save real money versus buying separate boxes. If the unit powers up cleanly, the controls are quiet, and the seller includes the matching supply and any original leads, this looks like a very worthwhile buy. Given the price, the main thing to confirm is simply that the stack is fully functional and not missing anything essential.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Stack Audio, a British hi-fi manufacturer founded in 2013 and based in Devon, emerged from the vision of Theo Stack, who spearheaded its debut product, the Onset network streamer. Drawing on the UK's deep-rooted expertise in audio engineering, the company has since prioritized meticulous design and domestic production, earning international acclaim for products that embody uncompromising build quality and sonic purity.
The brand focuses on source optimization and system enhancement, specializing in vibration isolation and noise reduction solutions rather than traditional amplifiers, speakers, or turntables. Key offerings include the Serene record mat and stabilizer for turntables, AUVA EQ isolators for equipment and speakers, and earlier streamers like the Onset, Serene, and Link. These components employ machined aluminum enclosures, inert materials, and targeted interventions to eliminate jitter, microphony, resonance, and electrical interference, unlocking a system's full musical potential.
Positioned as a niche boutique player in the high-end market, Stack Audio commands respect among discerning audiophiles for its no-compromise engineering and exceptional value. Free from hype, its products deliver transparent, natural sound that elevates existing setups, fostering a growing reputation for innovation in subtle yet transformative upgrades.
See all Stack Audio listings on RADAR.
