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Angeboten wird „V5 Sigmas“ von IsoTek Power Systems Ltd. als Ausstellungsstück aus der Kategorie „Netzteile / Stromversorgung“ bei audio-markt.de - dem Online-Marktplatz für High-End. Das Inserat mit der Nummer 9695332064 endet am 19.07.2026 um 08:10 Uhr.
This is a seller’s market for top-tier power conditioners, but the €3,500 asking price for the IsoTek V5 Sigmas is ambitious compared to the typical used market, sitting well above the 75th percentile of €1,943 and nearly triple the median of €1,132 from 27 recent EUR listings. While the new retail price hovers around €4,495–€4,995, paying €3,500 for a used unit means you’re only saving about €1,000–€1,500 off new, which is a modest discount for a 10-year-old flagship.
The V5 Sigmas remains well-regarded for delivering lean, clean power across seven outlets (four medium-current, three high-current) with global voltage support and cascading via System Link, making it a system-wide backbone for serious audiophiles. Its 15kg build and IEC C20 inlet signal durability, and IsoTek gear historically holds value well on the used market. However, given the price is above median and the unit is aged, verify the condition carefully—ensure no worn outlets, check the IEC cable integrity, and confirm original accessories are included before committing.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
IsoTek, founded in 2001 in England by Keith Martin, emerged from a focused mission to combat poor mains power quality that hampers hi-fi performance. Martin's vision drove rigorous research into power optimization, establishing the brand as a pioneer in delivering clean electricity to audio systems. From its inception, IsoTek has prioritized innovation, with products manufactured in Europe to ensure durability and precision.
The company specializes exclusively in power conditioning solutions, including highly specialized mains conditioners and enhancement power cables. These components actively filter and purify electricity from wall sockets, benefiting amplifiers, source components, turntables, and home cinema setups without altering core audio gear categories like speakers or DACs. This narrow focus allows IsoTek to offer scalable upgrades across budgets, from entry-level to reference-grade systems.
IsoTek commands a premium position in the high-end hi-fi market as the recognized leader in clean-power technology, trusted by over 100,000 customers in 45 countries and endorsed by brands like Arcam, Marantz, and Nordost. Hundreds of awards from audio critics affirm its reputation for transformative sound improvements and equipment protection, appealing to discerning enthusiasts seeking measurable performance gains.
See all IsoTek listings on RADAR.
