RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
The Fostex TH-919 represents the pinnacle of Fostex’s reference headphone engineering. Designed for discerning audiophiles, studio engineers, and critical listeners, these open-back dynamic headphones deliver exceptional transparency, imaging, and precision across the full frequency spectrum.Building on the acclaimed TH-900/TH-909 heritage, the TH-919 features Biodyna diaphragms, high-flux magnetic circuitry, and an optimized open-back acoustic chamber that provides natural air, nuanced transient response, and breathtaking clarity. The meticulously machined aluminum housings and angled ear-cup architecture ensure a wide soundstage with accurate spatial placement—ideal for high-resolution music, mixing, and immersive listening.Premium leather earpads and a lightweight magnesium alloy frame provide hours of fatigue-free comfort. The detachable 7N-grade OFC cable ensures ultra-low signal loss and pristine audio reproduction.If you’re seeking one of the finest open-back dynamic headphones available, the TH-919 sits firmly in the top tier of modern audiophile designs. Specifications Type: Open-back circumaural headphoneDriver Type: 50mm Biodyna diaphragmMagnet: Neodymium, high-flux magnetic circuitImpedance: 25?Sensitivity: 100 dB/mWMaximum Input: 1,800 mWFrequency Response: 5 Hz – 45 kHzHousing Material: Precision-machined aluminumCable: Detachable 7N-grade OFC cableCable Length: 3 metersConnectors: Standard stereo plug (with detachable mini-plug terminals depending on region)Weight: Approx. 400g (without cable) UPC Code UPC: 636827306139(Most widely published TH-919 UPC in U.S. distribution.)
Generating expert take…
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.
