Sony MDR-MA900: Full Open, Dynamic Stereo Headphones for High-Resolution and Wide Dynamic Range Sound Experience exceptional audio quality with the Sony MDR-MA900 stereo headphones. These full open, dynamic headphones deliver high-resolution and wide dynamic range sound, making them ideal for enjoying music, movies, and gaming.
Sony MDR-MA900: Full Open, Dynamic Stereo Headphones for High-Resolution and Wide Dynamic Range Sound Experience exceptional audio quality with the Sony MDR-MA900 stereo headphones. These full open, dynamic headphones deliver high-resolution and wide dynamic range sound, making them ideal for enjoying music, movies, and gaming.
English
Stereo headphones
Features
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 centre of the driver units
360 kJ/m
3
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 to use
How to wear the headphones (see fig. )
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 to use the unimatch plug adaptor (see fig. )
Insert the stereo mini plug fully into the jack until you hear a click.
Specifications
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, Single-sided OFC Litz
cord / Plug: Gold-plated stereo mini plug / Mass: Approx. 195 g 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.
Precautions
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.
Optional replacement earpads can be ordered from your nearest Sony dealer.
Disposal of Old Electrical & Electronic Equipment (Applicable in the
European Union and other European countries with separate collection
systems)
繁體中文
立體聲耳機
特點
新研發的 70mm 激勵單元可還原高清晰和寬廣動態範圍的聲音
舒適的全開放式耳機具備寬廣的立體聲音場
音響低音透鏡透過集中激勵單元中央的低音，為音樂、電影、電玩等呈現豐富的低音
效果
360kJ/m
3
釹磁體可還原清晰的中頻音質與豐富的低頻音質
佩戴舒適的可伸縮頭墊
輕盈設計可提供長期佩戴的舒適度
阻抗補償器（激勵單元內的電阻器網路）可消除不同輸出阻抗的放大器音質差距
舒適服貼的軟布耳墊
單側導線
使用方法
如何戴耳機（見圖
）
展開頭帶以調整長度。
將有
標記的耳機戴在右耳，
標記的耳機戴在左耳。
標有
的耳機上有一個觸點以辨識左側。
如何使用兩用轉接插頭（見圖
）
將立體聲迷你插頭完全插入插孔，直到聽到定位聲為止。
規格
型式：全開放式，動態/ 激勵單元：70mm，圓頂型（OFC 音圈）/ 功率處理容量：
700mW（IEC*）/ 阻抗：1kHz 時 12
Ω
/ 靈敏度：104dB
/mW/ 頻率響應：
5Hz–40000Hz/ 導線
：3m，單側 OFC 絞合導線 / 插頭：鍍金立體聲迷你插頭 /
質量：約 195g（不含導線）
附件：鍍金兩用轉接插頭（立體聲耳機插頭
立體聲迷你插孔）（1），使用說明書
（1）
* IEC=國際電工委員會
設計和規格如有變更，恕不另行通知。
注意事項
戴著耳機用很高的音量收聽可能會影響您的聽力。為了交通安全，切勿在駕車或騎車
時使用耳機。
切勿使耳機遭受過多衝擊。
小心處理激勵單元。
耳墊可能會因為長期存放或使用而損壞。
切勿忽略髒污的插孔插頭，否則聲音可能失真。
用柔軟的乾布清潔耳機。請勿於清潔時往耳機吹氣。切勿忽略髒污的插頭，否則聲音
可能失真。
切勿將立體聲耳機放在受陽光直射，靠近熱源或有濕氣的地方。
由於耳機的結構，聲音會洩漏到耳機外面。請顧及週遭人士，避免在火車上等公共場
所使用耳機。
可向附近的 Sony經銷商訂購選購的替換耳墊。
此標記的效力僅限於那些對該標記有法律強制性規定的歐洲國家。
Tactile dot
觸點
Stereo mini plug
立體聲迷你插頭
Unimatch plug adaptor
(supplied)
兩用轉接插頭
（提供）
MDR-MA900
Stereo Headphones
Operating Instructions
使用說明書
4-295-245-32(1)
©2011 Sony Corporation
Printed in Thailand
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Sony MDR-MA900: Full Open, Dynamic Stereo Headphones for High-Resolution and Wide Dynamic Range Sound Experience exceptional audio quality with the Sony MDR-MA900 stereo headphones. These full open, dynamic headphones deliver high-resolution and wide dynamic range sound, making them ideal for enjoying music, movies, and gaming.
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