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Ich biete hier ein Paar Fostex T90A zum Verkauf an.
Cirka 1 Jahr alt und den Grossteil davon im Regal gelegen.
Buyer’s market for this category right now: €550 is a touch ambitious for a standard used pair of these unless it’s exceptionally clean, boxed, and ready to go. Typical used pair pricing I’m seeing lands more around €380–€480, with nicer examples around €450–€500; at €550, I’d want standout condition or extras to justify it.
That said, this is a well-liked super tweeter for good reason: it brings effortless air, speed, and top-end sparkle without sounding crass when integrated well, especially with efficient systems. If the diaphragms are original, both units match, and the mounting hardware is included, it’s a worthwhile buy for someone building a serious horn or high-efficiency setup; the main thing to verify is condition and completeness, since that’s what separates a fair €480-ish deal from a slightly rich €550 one.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Fostex emerged in 1973 as the branded consumer and professional division of Foster Electric Co., Ltd., a Japanese loudspeaker manufacturer founded in 1949. Established to bring Foster's high-quality speaker components directly to dealers and customers, Fostex quickly gained international recognition through innovative products like the T20RP headphones and 6301 studio monitors. The brand's foundation rests on Foster's position as one of the world's largest OEM loudspeaker developers, employing tens of thousands across multiple countries and manufacturing millions of speaker units monthly.
The company built its reputation across three interconnected product categories: professional studio equipment, consumer headphones, and powered monitor speakers. Fostex became particularly renowned for pioneering RP (Regular Phase) technology, which delivers clear sound with high sensitivity and wide dynamic range—a signature that defines their headphones, microphones, and speaker designs. Beginning in 1978, the brand expanded into professional speaker development, eventually introducing the PM series of powered monitors and establishing itself as a trusted choice for recording studios, broadcast facilities, and serious home listeners.
Fostex occupies a distinctive middle ground in the audio market: neither ultra-premium boutique nor mass-market consumer, but rather a respected specialist brand with deep professional credentials. Their products appeal to recording engineers, studio owners, and discerning hi-fi enthusiasts who prioritize accuracy and reliability over luxury positioning. The 6301B monitor remains an industry standard after decades in production, while the T20RP headphones maintain popularity among studio professionals—testament to Fostex's enduring reputation for sonic integrity and engineering excellence.
See all Fostex listings on RADAR.
