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Offered is „Red-Black Feinsicherung T 3,15 A 5 x 20 mm“ by QSA as second-hand device from the category „Micro fuses“ on audio-markt.de - the online market place for high-end. The advert with the number 5542792212 ends on 05.11.2026 at 15:54 o'clock.
A boutique fuse isn’t the most glamorous upgrade, but it’s a niche part people buy when they’re chasing the last bit of refinement. At €1,490, this sits well above the €991 median and even above the €1,793 75th percentile only if you stretch the comparison set, so by the numbers it reads as ambitious rather than a bargain.
That said, this kind of item can be worthwhile for a buyer who already knows what they want: small, targeted, and often sought after by owners of resolving systems looking for a more polished presentation. The upside is best when the piece is genuinely clean, authentic, and complete, since condition matters more than cosmetics here. If the listing is truly good, it’s a specialist buy rather than a casual-value play.
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.
