RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Offered is „Silver 10 x 38 mm 20A Sicherung für Klangmodul“ by QSA as second-hand device from the category „Mains fuses“ on audio-markt.de - the online market place for high-end. The advert with the number 6550130856 ends on 15.11.2026 at 14:12 o'clock.
Quantum Science Audio fuses have a niche reputation among tweak-oriented listeners, but they’re firmly in the ultra-specialist end of the hi-fi world. At €2,790, this is well above the typical used market here: versus a €1,018 median and €1,940 75th percentile, it reads as ambitious unless there’s something extraordinary about provenance, quantity, or inclusion.
That said, the appeal is straightforward if you already buy into premium mains-fuse tuning: these are the kind of parts people chase for a last-percent refinement in noise floor, texture, and focus. For a good-condition example, the buyer case is strongest when the listing is complete, correctly specified, and from a careful owner; otherwise, the main question is whether this particular fuse set justifies spending nearly €850 above the upper quartile.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Quantum Science Audio (QSA) emerged in early 2020 under the leadership of Steven Tsang, an electronic engineering expert with deep roots in audio consulting. Based in Scottsdale, Arizona, with ties to Hong Kong where Tsang honed his expertise, the brand quickly carved a niche through relentless innovation in power components. Drawing from over two decades of proprietary research, QSA embodies a fusion of technical discipline and audio obsession, prioritizing subtle yet profound system enhancements.
The company's focus centers on high-performance aftermarket fuses, including thermal, slow-blow, automotive, and specialized AC variants like inlets, outlets, and panel breakers. QSA also extends into power receptacles and related accessories, all engineered to eliminate so-called "bottlenecks" in signal paths. Their lineup spans accessible entry points at around $28 to ultra-premium models commanding exorbitant prices, reflecting escalating tiers of advanced materials and quantum-inspired treatments.
In the hi-fi market, QSA occupies a polarizing boutique position among high-end enthusiasts, celebrated by some for transformative sound improvements in power delivery. Top models attract audiophiles chasing marginal gains, though skeptics dismiss the claims as overreach amid long production lead times. This niche status suits discerning buyers open to experimental upgrades in an otherwise crowded field.
See all Quantum Science Audio listings on RADAR.
