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12-13VAudiophile fuse QBT18 Ultra Bandwidth includedWill post anywhere in Australia included in the price
A$350 sits right on the money for the current used market: it’s essentially at the A$347 median and only a touch above the A$384 75th percentile, so this reads as a fair buy rather than a bargain or an inflated ask. Given what these units cost new, the pricing looks reasonable for a clean, working example.
Sbooster units have a strong reputation for lowering noise and tightening presentation in sensible power-sensitive systems, so the value here is in that quieter, more resolved background rather than flashy specs. If the listing is complete and the unit is in genuinely good condition, this is the kind of upgrade that can be easy to live with and hard to replace; at this price, just confirm the exact model, output spec, and that the included leads or adapters match your gear.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sbooster, a Dutch specialist in audio upgrade power supplies, traces its roots to 2008 when founder Wiebren Draaijer launched it under the name Squeeze-upgrade. Designed and developed in the Netherlands, the brand emerged from Draaijer's work enhancing Logitech Squeezebox players, evolving into a focused enterprise dedicated to plug-and-play solutions for hi-fi components.
The company concentrates exclusively on linear power supplies, such as the acclaimed BOTW (Best of Two Worlds) series, including the P&P ECO MKII models. These upgrades target network music players, headphone amplifiers, DACs, and other devices reliant on external PSUs, delivering cleaner power, reduced electrical noise, and superior current stability to elevate audio performance without altering the host equipment.
Positioned as a niche boutique in the high-end market, Sbooster earns praise for reliability, award-winning consistency since its 2018 MKII lineup, and tangible sonic improvements at accessible prices from its Bulgarian production. Reviews spanning 2010 to 2025 highlight its enduring value as a long-term system essential, backed by exceptional customer care, appealing to discerning audiophiles seeking precision upgrades over flashy marketing.
See all Sbooster listings on RADAR.
