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On Ear DJ Headphone
HD 25 Plus
对环境噪声有很高的削弱效果

HD 25 Plus
物品号 506908

背部封闭的 HD 25-1 II 是针对专业监听设计的耳机,对环境噪声有很高的削弱效果。由于能够应对极高的声压级并有非常结实的结构,此耳机在高噪声环境中有出众的表现,例如ENG, 扩声系统、录音间监听和音频设备测试。耳机听筒可以旋转成单耳监听,是非常适合摄像人员和DJ使用的监听耳机

  • High sensitivity due to lightweight aluminium voice coils

  • Capable of handling very high sound pressure levels

  • Very lightweight and comfortable, even if used for long periods of time

  • Tough, detachable, single-sided cable

  • Rotatable capsule for single-ear listening

HD 25 Comparison

Features HD 25 Light HD 25 HD 25 Plus
Light weight design
Exchangeable cable
Single sided cable  
Split headband  
Rotatable ear cup  
Extra cable included    
Extra Ear pads included    
Carry Pouch    
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Specifications
包装内含
  • 1 HD 25 PLUS with coiled cable
  • 1 Pouch
  • 1 additional pair of soft earpads
  • 1 additional 1.5m straight cable
  • 1 Screw on jack adapter 3.5 to 6.3 mm

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FAQ
  • What is the maximum SPL of a dynamic microphone?

    It is a common saying that dynamic microphones just have no maximum SPL.
    This saying is not technically exactly correct but for every day use use of dynamic microphones you will not find gain limitations. At SPL levels above 160 dB some mechanical problems might occur (for example the voice coil might crash onto the magnet) but these SPL levels are very hard to find in real world.
    Here at Sennheiser we use dynamic microphones for distortion measurements on loudspeakers at very high sound pressure levels. At Sennheiser we have measured the SPL and THD inside a large 2" driver/horn combination with a MD 421. The max SPL this combination was able to produce was 150 dB and the THD level recorded by a MD 421 was below 1% (produced by the driver not by the mic)
    So as a conclusion we can state the MD 421 has no maximum SPL limitations for practical use. However if using dynamic microphones at high SPL levels a user should be aware that the very high voltage (up to several volts) delivered by the microphone might cause problems when connected to mic preamps.



  • Sound in only one ear or general sound issues.

    If the headphones have sound in only one ear or differing sound levels in each ear or the sound in general is not what you expected then it needs to be determined where the issue lies - with the headphones or with the audio source.

    The first thing to do is ensure that you have the audio plug of the headphones connected securely into the audio device. A properly connected cable should not wiggle. If the plug wiggles that could indicate a loose connection. NOTE: This could be a result of the cable not being plugged all the way in or it could be a faulty input or sometimes if the device you are connecting to has a case on it the case will prevent the cable plugging in correctly.

    The next thing to do is to check and make sure that there is no debris (ie: no dust or lint) in the headphone jack of the audio source that may be inhibiting connectivity and causing sound issues.

    The next thing to do is to check that the connecting jack is clean. If oils from the hands gets builds up on the plug or sweat evaporates on the plug the salts and grime may prevent proper contact from occurring. The connecting jacks can be cleaned using a basic alcohol wipe.

    The next thing to do is to try the headphones on a different audio source to check that it is not the original audio source (or a setting on the audio source) that is creating the issue. If you connect to an alternate audio source and the issue is not there then you know the headphones are fine and the original audio source is the issue. NOTE: Many modern audio devices have audio limit pre-set at the factory and these limit need to be changed to get the full audio signal out of the device and to the headphones.

  • Are the ear pads and headband band padding and cable replaceable?
    Yes. Sennheiser offers replacement ear pads, headband padding and cables.

  • What are the primary differences between the different HD 25 models?

    Currently Sennheiser offers three (3) models in the HD 25 line

    • HD 25 LIGHT

    - The HD 25 LIGHT is the essential sound of a HD 25 with a simplified headband.


    • HD 25

    - The HD 25 is our legendary HD 25 headphone with splayed headband and straight cable.


    • HD 25 PLUS

    - The HD 25 PLUS is our legendary HD 25 headphone with coiled cable, an additional straight cable, a second set of ear cushions and a protective pouch

    These models offer the same sound signature as the legendary HD 25 and sound signature of the headphones is the same across the three models.



  • Are the ear pads of the HD 25 real leather or leatherette?
    The ear pads of the HD 25 are made of a synthetic leatherette.

下载

  • 欧盟符合性声明
    • EU Declaration of Conformity HD 25 Series (460 KB) 下载

  • 安全指南
    • 安全提示 HD 25 (3.3 MB) 下载

  • Mounting Instructions
    • Mounting instructions Replacing Cable HD 25 (370 KB) 下载