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At £716, this is a strong deal: it sits below the £700–£829 comparable range’s lower quartile only marginally, but is still £55 under the £771 median. Assuming it works properly and the listing is complete, the price looks like a genuine buying opportunity rather than merely fair value.
The S300 remains a particularly capable power amplifier, combining a Class A input stage with a cool-running Class D output stage, 140 watts per channel into 8 ohms and 300 into 4 ohms. It is fast, clean and rhythmically assured, with excellent bass control, broad soundstaging and both RCA and XLR inputs. Check that the rear power switch, standby operation and both input types function, and confirm the mains lead and original packaging if shipping is involved; otherwise, there is little reason to be suspicious at this money.
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.
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