On Ear Monitoring Headphone

HD 25 Light

Closed, on-ear monitoring headphones
物品編號 506910

概述

背部封閉的 HD 25 Light 是針對專業監聽設計的耳筒,對環境噪聲有很高的削弱效果。由於能夠應對極高的聲壓級並有非常結實的結構,此耳筒在高噪音環境中有出眾的表現,例如ENG、擴聲系統、錄音間監聽和音頻設備測試。耳筒聽筒可以旋轉成單耳監聽,是非常適合攝像人員和DJ使用的監聽耳筒。


特性

  • Closed, supra-aural DJ mixing headphones for use in high noise environments.

  • Excellent sound reproduction: emphasized bass and lifted treble

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

  • Extremely rugged, made for daily use

  • Capable of handling very high sound pressure levels

  • Dual-sided, detachable cable, 3m


包裝內含?

  • 1 HD 25 LIGHT
  • 1 Screw on jack adapter 3.5 to 6.3 mm

技術數據

  • 顏色
    黑色
  • 頻率響應(耳機)
    30 - 16000 Hz
  • THD,總諧波失真
    <0,4 %
  • 接觸壓
    ~ 3 N
  • 佩戴方式
    supraaural
  • 插頭
    Jack 3,5 /6,5 mm stereo
  • 線長
    3 m, straight cable
  • 換能原理
    dynamic, closed
  • 重量
    115 g
  • 標稱阻抗
    60 Ω
  • 額定載荷
    200 mW stereo
  • 最大聲壓級(主動)
    114 dB (1 kHz, 1 Vrms)

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.



    HD 25 Light ( #506910 )

下載

  • EC Declaration of Conformity
    • EU Declaration of Conformity HD 25_Series.pdf (220 KB) 下載

  • Technical Data
    • Safety Guide and Technical Data.pdf (1.1 MB) 下載

  • Mounting Instructions
    • Replacing Cable.pdf (430 KB) 下載