GRAS AM0388 High-Temperature Click-Mount Windscreen for 147AX

The AM0388 is a high-temperature windscreen with a click-mounting system, specifically designed and optimized for use with the GRAS 147AX microphone set. 

It is available in two different versions:

  • AM0388-1 High-Temperature Click-Mount Windscreen for 147EB, 1 pc.

  • AM0388-2 High-Temperature Click-Mount Windscreen for 147EB, 5 pcs.

Note that AM0388 is not included with the GRAS 147AX microphone set, so it should be acquired separately.

In the product picture, it is shown together with the GRAS 147AX microphone set (microphone set not included).

Technology

Introduction

The AM0388 is a 90mm diameter windscreen specifically designed and optimized for use with the GRAS 147AX microphone set. Constructed from high-temperature, 30 PPI (pores per inch) foam, it is suitable for applications up to 125°C. The windscreen features a click-mount system that ensures a secure and reliable attachment to the GRAS 147AX.

 

Design

When a microphone is placed in a laminar flow, turbulence is created which in turn results in unwanted pressure variations on the diaphragm. By using a windscreen the pressure variations are moved as far away from the diaphragm as possible.

Theoretically this supports a “the-bigger-the-better design”, but in practice it is a compromise between air speed reduction, practical size and self-induced noise. Self-induced noise is wobble-noise which is generated, when the windscreen starts moving around the microphone.

The GRAS windscreens are all size optimized and their special, open-cell foam structure and a number of pores per inch (PPI), are designed to resist a humid environment and at the same time not influence the sound pressure measurement result significantly.

 

Quality & Warranty

GRAS accessories are made of stainless steel, alloys and high-quality composites. These items are covered by a 2 year warranty respecting their intended use. On consumables like batteries, cables and windscreen we offer a 6 month warranty.