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Offered is „Sicherung Violett“ by QSA as new device from the category „HiFi-Accessory“ on audio-markt.de - the online market place for high-end. The advert with the number 1770606177 ends on 06.11.2026 at 08:10 o'clock.
This is a buyer’s market for this category at the moment: with recent comparable used listings centered at €568, a €800 ask sits well above the median and above the €866 75th percentile only on the high side of the spread, so it reads as ambitious rather than fair. It is not an automatic no, but you’d want a real justification in the form of exceptional condition, proven low hours, or extras to make that number work.
For a well-regarded audio fuse like this, the appeal is usually in refinement rather than night-and-day transformation: buyers chase it for a cleaner, more resolved presentation when the rest of the system is already sorted. That makes it a niche upgrade, and a strong listing can still be attractive if it is unused, carefully stored, and complete. At this price, though, I’d only move quickly if you specifically want this exact tweak and the seller can document originality and condition.
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.
