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The Stellar S300 has a strong reputation as a compact, high-current amp that punches above its size, and US$1,099 lands right around the center of the recent used market. With a median at US$1,107 and the 25th to 75th percentile running from US$1,018 to US$1,483, this is a fair buy rather than a steal, but still comfortably priced for a well-regarded piece.
That makes it appealing if you want PS Audio’s clean, controlled presentation without paying new-gear money. It’s especially worthwhile if the unit is tidy, comes from a careful owner, and includes the original packaging or other extras for easier resale; there’s no obvious pricing red flag here, just a sensible opportunity to buy a respected amp at a market-normal figure.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
PS Audio, a pioneering American hi-fi brand, traces its roots to 1973 when co-founder Paul McGowan launched the company in California alongside Stan Warren. Emerging from the analog golden age, it debuted with a standalone phono preamplifier, reflecting McGowan's early passion for vinyl playback honed through radio station connections and encounters with audio enthusiasts. The brand quickly evolved, embracing digital audio in the 1980s by releasing one of the first high-end CD players, the PS Audio CD-1, soon after Philips and Sony introduced the format.
Today, PS Audio specializes in premium electronics, including power amplifiers, preamplifiers, digital-to-analog converters (DACs), and integrated amplifiers, with a hallmark focus on power conditioning via innovative AC regenerators known as Power Plants. These devices, born from Stan Warren's mid-1980s discovery that oversized transformers enhance audio performance, remain a cornerstone. The lineup also encompasses digital lenses for refining streaming and disc playback, alongside select analog components, though it eschews speakers, headphones, turntables, or cables.
Positioned firmly in the high-end market, PS Audio commands respect among discerning audiophiles for its bold engineering and unwavering pursuit of musical purity. Celebrating 50 years in 2023, it occupies a niche as an innovator rather than a mass-market player, appealing to buyers who prioritize transformative power delivery and digital refinement in sophisticated systems.
See all PS Audio listings on RADAR.
