Building upon the success of the TH900mk2, the Fostex TH909 are premium reference open-back headphones well suited for professionals and audiophiles. The TH909 feature a remarkably designed driver unit with a 1.5-tesla (15,000 gauss) magnetic flux density and biodynamic 50mm diaphragm. The detachable connectors use a rhodium plating finish, which offers high hardness with abrasion and corrosion resistance. The housing features a traditional Japanese lacquered Bordeaux finish, while the updated earpad design provides a low-resilience cushion to ensure a comfortable fit. The included unbalanced cable is made from 7N-grade oxygen-free copper (OFC) with a gold-plated 1/4" TRS plug and can be replaced with optional cables such as a balanced cable with XLR connectors. Additionally, the headphones come with a stand and carrying bag.

50mm Dynamic Driver    1.5 Tesla Magnetic Flux Density    Frequency Response: 5 Hz to 45 kHz    Detachable Cable Connectors    Optional Balanced Cable Available    Low-Resilience Cushion Earpads    Includes Headphone Stand    Includes Carrying Bag    Includes Unbalanced Cable

• Wider dynamic range with low distortion
• 1.5-tesla 50mm driver with repulsion magnet
• Diaphragm Material: Proprietary Biodyna technology (biocellulose and inorganic fiber admixture)
• Provides rich low frequency, natural midrange, and remarkable presence in high-frequency reproduction
• Double-layer structure etching metal grilles are used as housing opening
• Housing cover uses Japan Lacquer Bordeaux finish manufactured by craftsmanship of Sakamoto Urushi Factory established in 1900
• Custom-made 7N grade (99.99999%) high-purity OFC (Oxygen Free Copper) unbalanced cable (model ET-H3.0N7UB equivalent) is included as standard
• Equipped with detachable connector
• Supports balanced connection with optional XLR cable (model ET-H3.0N7BL)
• Detachable connection parts use rhodium plating finish offering high hardness with abrasion and corrosion resistance
• Updated earpad design adopts a low-resilience cushion to achieve a comfortable fit and the best audio performance
• Compatible with the optional cables made for the TH900mk2

Related Questions and Answers

Q: 1. I'm told that since these are 63 Ohm impedance, they require a fair amount of power to work properly. In other words, I was told to expect poor results from an iPad or iPhone. Is that correct?

A: These reference headphone are considered high impedance but will work with a mobile device, such as an iPhone or iPad. A portable headphone amplifier, such as the FiiO A1 Portable Headphone Amp (Black), BH #FIA1BK can be used to boost the signal.

Q: 2. Are these good for mixing audio (speech , music and effects? in a nle?

A: Yes these are used in most major recording studios

Q: 3. What kind of DAC Is in the Sony 7506?

A: The Sony MDR-7506 Headphones do not have any kind of DAC built-in. They are standard analog headphones.

Q: 4. what is the warranty?

A: Limited 90-Day SONY USA Warranty.

Q: 5. I own the Audio-Technica ATH-M50x, which I use for film production location sound. I'm looking for a more compact alternative that will take less space in my camera bag. Are the Sony MDR-7506 a good option in that regard?

A: Yes, the Sony MDR-7506 Headphones (BH #SOMDR7506 • MFR #MDR-7506) are a great option for monitoring location sound, with 40mm drive units that can accurately capture a wide dynamic range. They are also easily foldable and should definitely take up less space in your bag than the Audio-Technica ATH-M50x's.

Q: 6. Does the letters and markings (like the cross hair marker in the center) on the card affect custom white balance on the camera?

A: No, your using the overall area of the card and those small markings with have no affect on the process.

Q: 7. Where are these headphones made. China or Taiwan?

A: The pair I bought were made in Thailand. They are very good headphones, though. I use them for monitoring in my small studio when doing vocals. I have done rough mixdown late at night as well, and find the results pretty good the next morning.

Q: 8. Does this work with Casio PCs-870?

A: Indeed it will. It is a standard headphone and includes a 1/4" adapter required for connecting to the headphone output of the Casio PX-870BK Privia 88-Key Digital Piano (Black) B&H # CAPX870BK.

Q: 9. Can this mount on a video camera?

A: It can if you buy the appropriate hot shoe mount, but I wouldn't recommend it because the sound is weirdd

Q: 10. Is this headphone stereo? I assume it is due to type of plug, but just want to verify before purchasing it.

A: Yes - not to be a turd, but if you look at the photo it says so right there.It's a great pair of headphones - have had them for two years and no complaint!