bd40bc7c7a 2) measured as equivalent el. Neumann U87 Manual (PDF, 247.1 M) .. >> Back to top. The present-day circuitry increases the operational headroom of the U 87 Ai by supplying the bias voltages for the capsule through a reduced resistance. When this switch is activated, the microphone accepts sound pressure levels up to 127 dB (equivalent to a sound pressure of 45 Pa) without distortion.
A switch below the headgrille selects the three directional patterns: omnidirectional, cardioid and figure-8. The microphone can be used very close to a sound source without the sound becoming unnaturally harsh. These are selectable with a switch below the headgrille. Audiofanzine on Facebook Audiofanzine on Twitter Audiofanzine on Google+ Audiofanzine on YouTube Audiofanzine on YouTube Search on Audiofanzine: Search French English German Spanish Italian Japanese Become a member ABOUT AUDIOFANZINE SEE ALSO AudioFanzine mobile SUPPORT 2000-2016 All rights reserved . Acoustical operating principle Pressure gradient transducer Directional pattern Omnidirectional, cardioid, figure-8 plus Frequency range 20 Hz . The studio microphone classic. The result is a higher sensitivity of 10 dB for identical sound pressure levels, and an improved S/N ratio of 3 dB. Cookies help us improve performance, enhance user experience and deliver our services. This reduces low frequency interference directly at the input of the microphone amplifier. Modifications apply to the electronic components of the microphone only; the capsule remained unchanged.