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Pure sound –
every note

MDR-1A Hi-Res Headphones

Drawing inspiration from a legacy of personal audio reproduction, Sony engineers have developed the perfect balance of Premium style and hi-resolution audio performance. Introducing the MDR-1A Stereo Headphone featuring thoughtful design, lush long-term comfort, and ultra-responsive Hi-Res audio response for a sound experience bar-none.


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Additional Features

Silver coated OFC cable

With less inherent electrical resistance than standard copper cabling, silver coated OFC (oxygen free copper) cable minimizes signal transmission loss to ensure that only rich, sweet sounds reach
your ears.

Beat Response Control

Acoustic ports within each ear cup housing help control airflow for optimized diaphragm movement for accurate sub-bass response.

Enfolding design

Delivers wrap around comfort with an improved acoustic seal for deep bass response.

Inward Axis Structure

Placing the hanger structure axis inside that of the diaphragm housing provides optimum,
stable fit.

Silent Joints

Precise machining, in addition to the placement of silicon rings around every moving axis, realizes smooth and silent earcup movement for an immersive music experience devoid of annoying mechanical rattling.

SmartKey™ App

The free SmartKey™ APP (available at Google Play and the App Store) lets you customize the control of the in-line remote via your smartphone.2

Two cables supplied

Two, supplied cables accommodate listening flexibility. A conventional connecting audio cable (1.2m),
in addition to an in-line
microphone and remote cable for smartphone (1.2m).

Carrying Pouch

A convenient carrying pouch
is included to keep your
headphones secure.


In addition to traditional Black, the MDR-1A headphone is also available in Silver.

  • Driver Unit: 40 mm, dome type, Aluminum-coated Liquid Crystal Polymer Diaphragm
  • Frequency Response: 3 - 100,000 Hz
  • Power Handling Capacity: 1500 mW (IEC)
  • Sensitivity (db): 105 dB/mW
  • Volume Control: No
  • Case Type: Carrying Pouch
  • Design: Over-the-head
  • Diaphragm: 40 mm, dome type, Aluminum-coated Liquid Crystal Polymer Diaphragm
  • Frequency Response: 3 - 100,000 Hz
  • Headband: Yes
  • Impedance: 24 Ω at 1 kHz
  • Magnet: Neodymium
  • Plug: Gold-plated plugs: stereo mini and L-shaped four conductor mini
  • Sensitivity: 105 dB/mW
  • Type of Use: Portable and Home
  • Cord: Single-sided; detachable
  • Headphone Type: Closed, Dynamic
  • Microphone: In-line elecret condenser (with supplied Smartphone Control Cable)
  • Remote Control: Multi-function button / SmartKeyTM app (with supplied Smartphone Control Cable)
  • Power Handling Capacity: 1500 mW (IEC)
  • Impedance: 24 ohms at 1 kHz
  • Type: Closed, dynamic
Weights and Measurements
  • Cord Length (Approx.): Headphone cable: 47 1/4 in. (1.2 m) Smartphone cable: 47 1/4 in. (1.2 m)
  • Weight (Approx.): 7.94 oz. (225 g.) without cable
In The Box
  • Operating Instructions 1
  • Headphone cable 1
  • Smartphone control cable 1
  • Carrying Pouch 1
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