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Dual 505 III Audiophile Concept Turntable On offer is a refurbished Dual 505 III Audiophile Concept belt drive turntable. The unit has had a complete mechanical service, all mechanisms were cleaned and re-lubed. Motor and platter bush were serviced and new platter and pitch control belts were fitted. A brand-new Ortofon OM5S cartridge has been fitted and all necessary arm adjustments have been made. The deck lid top was refurbished, rubbed back with 2000 grade wet and dry paper then machined polished, it came up really nice. The entire unit was given a deep clean. The unit is very heavy, h
Should you grab this Quantum Science Audio Dual 505 III turntable listed at A$225 AUD for new condition, or is it a trap? This price is a massive bargain, sitting well below the 25th percentile of A$396 AUD and drastically under the median of A$948 AUD from six recent AUD comparable listings. At A$225 AUD, you are paying less than a quarter of the typical market value for this audiophile concept turntable, making it an undeniable strong deal if the condition is genuine.
The Dual 505 III is well-regarded for its serious audiophile concept, offering superior stability and resonance control that serious vinyl enthusiasts crave. Ownership at this price point represents rare upside, likely signaling an original-owner find or a quick sale on a pristine unit that usually commands near A$1,000 AUD. With no material caveats raised by the A$225 AUD price, this clean listing is a genuine buying opportunity for anyone seeking high-end turntable performance without the usual cost.
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.
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