FREE ENGLISH SONY MDR-MA900 (01) PDF USER GUIDE
FREE ENGLISH SONY MDR-MA900 (01) PDF USER MANUAL
FREE ENGLISH SONY MDR-MA900 (01) PDF OWNER GUIDE
FREE ENGLISH SONY MDR-MA900 (01) PDF OWNER MANUAL
FREE ENGLISH SONY MDR-MA900 (01) PDF REFERENCE GUIDE
FREE ENGLISH SONY MDR-MA900 (01) PDF INSTRUCTION GUIDE
FREE ENGLISH SONY MDR-MA900 (01) PDF REFERENCE MANUAL
FREE ENGLISH SONY MDR-MA900 (01) PDF INSTRUCTION MANUAL
FREE ENGLISH SONY MDR-MA900 (01) PDF OPERATING INSTRUCTIONS
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What are the features of the MDR-MA900 headphones?
Newly-developed 70 mm driver units for high-resolution and wide dynamic range sound
Comfortable full open headphones with wide stereo soundstage
Acoustic Bass Lens delivers rich bass sound for music, movie, gaming, etc., by concentrating bass sound at the center of the driver units
360 kJ/m³ neodymium magnets for clear mid-range and rich bass sound
Flexible-fit head cushion for wearing comfort
Light-weight design for long-term wearing comfort
Impedance compensators (resistor network inside driver units) eliminate variances in sound quality between amplifiers of different output impedance
Comfortable fitting with fabric earpads
Single-sided cord
How do I wear the headphones?
Extend the headband to adjust the length.
Wear the headphone marked Ⓡ on your right ear, and the one marked Ⓛ on your left ear.
There is a tactile dot on the unit marked Ⓛ to distinguish the left side.
How do I use the unimatch plug adaptor?
Insert the stereo mini plug fully into the jack until you hear a click.
What are the specifications of the MDR-MA900 headphones?
| Type | Full open, dynamic |
| Driver unit | 70 mm, dome type (OFC Voice Coil) |
| Power handling capacity | 700 mW (IEC*) |
| Impedance | 12 Ω at 1 kHz |
| Sensitivity | 104 dB/mW |
| Frequency response | 5 Hz – 40,000 Hz |
| Cord | 3 m (118 1/8 in), Single-sided OFC Litz cord |
| Plug | Gold-plated stereo mini plug |
| Mass | Approx. 195 g (6 7/8 oz) without cord |
| Supplied accessories | Gold-plated unimatch plug adaptor (stereo phone plug ↔ stereo mini jack) (1), Operating Instructions (1) |
* IEC = International Electrotechnical Commission
Design and specifications are subject to change without notice.
What precautions should I take when using the headphones?
Listening with headphones at high volume may affect your hearing. For traffic safety, do not use while driving or cycling.
Do not subject the headphones to excessive shock.
Handle the driver units carefully.
The earpads may deteriorate due to long-term storage or use.
Do not leave the jack plug dirty otherwise the sound may be distorted.
Clean the headphones with a soft dry cloth. Do not blow on the units when cleaning. Do not allow the plug to become dirty, otherwise the sound may deteriorate.
Do not leave the stereo headphones in a location subject to direct sunlight, heat or moisture.
The sound will leak from these headphones due to their structure. Pay regard to the people around you, and refrain from using the headphones in public places, such as on trains.
Where can I get replacement earpads?
Optional replacement earpads can be ordered from your nearest authorized Sony retailer.
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