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The timing is decent: this is an established Project Horizon III, not the newest garage build in the line, but it’s still a well-liked OTL design for the right headphones. At US$140, it sits below the US$164 median and comfortably under the US$400 75th percentile, so it reads as a fair-to-good buy rather than a stretch.
What makes it worthwhile is the pairing of the amp with the Supercharger, which broadens tube options and is a real plus for tube-rolling enthusiasts. Horizon III units are valued for their clean, roomy OTL sound and good match with higher-impedance cans, so a clean, complete listing like this has genuine appeal. If the condition is truly mint and it includes the right power supply and any tube adapters, this looks like a solid enthusiast buy.
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.
