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Sony MDR-MA900 Over-the-Head Stereo Headphones, Open Circumaural Driver, 104 dB/mW Sensitivity

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About Sony MDR-MA900

Revel in high-quality audio with the Sony MDR-MA900 stereo headphones. Equipped with 70mm driver units, this lightweight headphones supply high-resolution sound with a wide, dynamic range. An acoustic bass lens helps deliver rich bass while high-power neodymium magnets provide clear mid-range response. An open air design creates a natural sound field that mimics listening to music without headphones.

Sony MDR-MA900 Features

  • An open-air design delivers not only a lightweight, comfortable and airy feeling, but also creates a natural sound field that mimics listening to music without headphones
  • Specially developed 70mm driver units deliver high-resolution sound with a wide, dynamic range
  • A 3.0 meter, single-sided cable with Unimatch plug allows connectivity to various audio devices
  • 360 kJ/m3 neodymium magnets provide rich bass and clear mid-range response
  • Acoustic bass lenses help deliver rich bass response by concentrating the bass impact at the center of the driver

Sony MDR-MA900 Specifications

Driver Unit
Open circum-aural, Dynamic 70 mm, dome type (OFC Voice Coil)
Frequency Response
5 - 40,000 Hz
12 ohms at 1 kHz
Sensitivity (db)
104 dB/mW
Power Handling Capacity
700 mW
Over-the-head, Monitor
Wide, Adjustable
Gold-plated stereo mini plug
118-1/8" (3 m) Single-sided OFC Litz cord
6-7/8 oz (195 g) without cord
Mfr #

Sony MDR-MA900 Reviews Powered by TurnTo®

Reviewed by 3 customers

(1 of 1 customers found this review helpful)


Simply amazing!!


I bought this HP after reading a lot of positive reviews on Head-fi. I was looking for a HP for watching movies since I just bought a projector. I have Samson SR850, although it sounds good, it is not really comfortable after awhile. I decided to get MA900 because it is supposed to be lightweight and open back. When I received the HP, I can't believe how light it is and the sound is amazing. The clarity, layering of sound, crispness, positioning/imaging are simply astonishing. I listened to an orchestra and I can tell where the sound coming from. I highly recommended this headphone.

(2 of 2 customers found this review helpful)


Comfort and Sound


The metal frame is nice

(1 of 1 customers found this review helpful)


The best headphones for this price range


I use this headphones with my computer and they're amazing!!! If you like powerful bass this headphones are not for you because of the open design, but if you are looking for the lightest and most comfortable headphones these are what you're looking for. I wear them for hours and they don't fatigue me, the sound is soft and smooth, it's very relaxing and easy to listen to for hours.

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