Key Takeaways
1. Fostex has launched the TH910 and TH919 closed-back headphones, replacing the TH900 series, featuring Japanese-lacquered maple casings with unique designs.
2. Both models use Fostex’s 50mm BioDyna driver, enhancing bass performance and minimizing sound distortions, with a frequency response of 12.5 to 40,000 Hz.
3. Designed for powerful amplifiers, these headphones can handle inputs up to 1,800 mW and come with a 3.5 mm oxygen-free copper cable; a balanced 4.4 mm cable will be available later.
4. The headphones are lighter, weighing 13.6 oz (385 g), due to magnesium alloy construction, and feature natural sheepskin padding and silk protein synthetic leather ear cups.
5. The TH910 and TH919 will be available on Amazon starting September 2025, with expected pricing around $2,000.
Fostex has introduced the TH910 and TH919 closed-back flagship headphones, which take the place of the TH900 series. Both headphones showcase Japanese-lacquered maple casings adorned with a unique sulfur-smoked silver foil pattern created by Urushi Sakamoto Co., Ltd.
Advanced Driver Technology
These over-ear headphones utilize Fostex’s 50mm BioDyna driver, boasting a revamped design that incorporates a new voice coil and driver surround. This design is said to enhance bass performance while minimizing artifacts and muddiness. The drivers offer a frequency response range from 12.5 to 40,000 Hz, with an impedance of 25 ohms and a sensitivity rating of 100 dB/mW.
Designed for Power
These high-end headphones are tailored for powerful amplifiers, capable of handling inputs up to 1,800 mW through the included 3.5 mm oxygen-free copper cable (7N). A balanced 4.4 mm cable is set to be released at a later date for even more versatility.
The use of lightweight magnesium alloy has reduced the weight of the headphones by about 20% compared to their predecessors, with both models now weighing in at 13.6 oz. (385 g). The headband features natural sheepskin padding, while the ear cups are made from silk protein synthetic leather, resting on contoured, dual-density urethane foam.
Availability and Pricing
Customers can expect to find the TH910 and TH919 available in the Fostex store on Amazon when they start shipping in September 2025. Although pricing details haven’t been released yet, it is anticipated that they will begin around $2,000.
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