Fostex TH-900

The Fostex TH-900 utilizes a large 50mm biocellulose diaphragm that delivers a distinctly warm, dynamic, and highly detailed sound signature. This driver design allows for incredibly deep, impactful bass without completely sacrificing vocal clarity. It is a legendary configuration favored by critical audiophiles.

While they offer exceptional detail, the TH-900 is a closed-back headphone with a fun, V-shaped sound signature that emphasizes deep bass and treble. This makes them incredible for enjoyment and tracking, but less neutral than dedicated studio monitors like the Sennheiser HD 600. Many producers actually prefer them for checking low-end frequencies rather than flat mixing.

Beyond the biocellulose drivers, the ear cups are crafted from real Japanese Urushi lacquer, applied by hand, giving them a stunning, high-gloss finish. The housing is specifically designed to minimize unwanted resonance while looking visually striking. This traditional craftsmanship sets them apart from standard aluminum or plastic headphones.

Yes, the TH-900 features plush, protein leather earpads that provide excellent comfort and isolation, and they can be replaced when they wear out. Fostex also offers different thicknesses and materials for users who want to modify the sound signature or fit. However, removing them requires careful pulling to avoid damaging the ear cup chassis.