RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Selling an Ortofon ST-7 MC transformer in excellent used condition.Comes with the original packaging.Asking 650€Shipping in the EU with UPS approx 30€, please ask for details.On sale elsewhere as well.
The timing here is mostly about generation, not age: this transformer is a classic moving-coil step-up piece, and there is no obvious newer replacement model that makes it obsolete. At US$783, the asking price is clearly ambitious versus your comp set: it sits well above the 75th percentile of US$558 and far above the median US$333, so this is not a fair-market buy unless the condition or provenance is exceptional.
What makes it appealing is the usual ST-7 case: it’s a respected, low-noise way to get real gain and preserve the tone and dynamics that MC fans want, especially if you’re matching a low-output cartridge to a good MM stage. If the unit is complete, quiet, and includes the right cables/accessories, that adds real value; but at this price, I’d want clear evidence of excellent condition and originality before moving.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Ortofon: A Century of Precision Sound
Ortofon traces its lineage to October 9, 1918, when Danish engineers Axel Petersen and Arnold Poulsen founded the Electrical Phono Film Company in Copenhagen. The name itself derives from Greek, meaning "correct sound"—a philosophy that has guided the company's trajectory for over a century. Initially focused on synchronized sound film technology, Ortofon pivoted to audio reproduction after 1945, when the superior recording quality of new cutting equipment revealed the inadequacy of existing playback systems. This gap sparked the development of the pioneering Ortofon mono pickup in 1948, establishing the foundation for the company's future dominance.
Today, Ortofon is the world's largest manufacturer of magnetic cartridges for phonograph turntables, producing approximately 500,000 units annually. The company's product portfolio centers exclusively on phono cartridges—both moving magnet and moving coil designs—with over 300 distinct models developed since 1948. This singular focus reflects deep specialization rather than diversification, positioning Ortofon as a micro-mechanical specialist rather than a broad-based audio manufacturer.
Ortofon occupies the high-end segment of the audio market, commanding respect among vinyl enthusiasts and professional studios alike. The brand benefits from Denmark's established reputation for acoustic engineering and industrial design, supported by in-house research and development. For discerning turntable owners, Ortofon cartridges represent the gold standard—a heritage brand whose century-long commitment to cartridge excellence remains unmatched in the industry.
See all Ortofon listings on RADAR.
