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At US$309, this is essentially median-market pricing: the comparable-listing median is US$310, with the broader middle range running from US$264 to US$376. It is a fair ask rather than a bargain, assuming the unit is complete and working; condition is listed as unknown, so confirmation matters before paying full market value.
The Tube Box S2 remains a worthwhile phono stage for systems using either MM or MC cartridges. Its adjustable gain and loading, low-noise dual-mono design, switchable subsonic filter, and replaceable ECC83 tubes make it unusually flexible at this size and price, with an engaging, rich presentation. Check that both tubes, the external power supply, and the cartridge-loading switches are present, and ask for a quick test for hum or channel imbalance.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pro-Ject Audio Systems traces its roots to 1991 in Austria's Weinviertel region, north of Vienna, where founder Heinz Lichtenegger launched the brand amid the CD revolution. Kicked out of music school as a youth, Lichtenegger channeled his passion for analog sound into affordable, high-quality turntables at a time when vinyl seemed obsolete. His debut Pro-Ject 1, hand-assembled in the Czech Republic, earned rave reviews as a top high-end device, igniting a success story that relocated headquarters to Vienna before returning to Mistelbach in Lower Austria.
The brand excels in turntables, establishing itself as the world's largest and leading producer in that category, while expanding into a full spectrum of hi-fi components since 2000. Offerings include amplifiers, DACs, headphone amps, speakers, cables, and phono stages, all emphasizing essential sound reproduction with durable materials and minimalist design. Manufacturing remains European—primarily in Czechia, Slovakia, and Germany—prioritizing sustainability through local sourcing, short transport, and products built for longevity.
Pro-Ject holds a commanding niche as the go-to for mid-tier audiophiles seeking boutique European craftsmanship without extravagant pricing. Distributed in over 80 countries, it appeals to vinyl revivalists and discerning buyers who value analog purity, innovation, and value-driven performance over flashy excess, cementing its reputation as a pioneer in accessible high-fidelity.
See all Pro-Ject listings on RADAR.
