Fostex TH909 Open-Back Over Ear 1.5 Tesla Stereo Headphones

TH909 is a flagship premium headphones based on the reputed closed type TH900mk2. While keeping the same sound characteristic, we further expanded and increased its sound field by adopting open back construction and adjusting the acoustic circuit design.

Key Features

• Offers a wider dynamic range with low distortion using 1.5 Tesla 50mm driver with repulsion magnet
• Proprietary "Biodyna" technology
• Double layer structure etching metal grills
• Housing cover uses Japan Lacquer Bordeaux finish

Technical Specifications

Driver
Dynamic, 50mm
Operation Type
Open back
Impedance
25 ohm
Sensitivity
100dB/mW (at 1kHz, 1mW)
Freq. response
5Hz - 45kHz
Max Input Power
1,800mW
Weight
390g (excluding the cable)
Cable
Detachable 3m 1/4” unbalanced stereo phone (model ET-H3.0N7UB)
Accessories
Headphone Stand (model ST300), Carrying Bag