For microphones

GRAS 67TS Turbulence Screen Kit

Turb. att.: Up to 25 dB* Turb. speed: Up to Mach 0.2 Freq. range (turbulence) 500 Hz - 10 kHz* Acoustic att.: Less than 3 dB Directivity: ± 60 Deg *Depending on flow-speed

GRAS 67TS Turbulence Screen Kit

The GRAS 67TS Turbulence Screen Kit is designed for aeroacoustic testing in solid-walled wind tunnels. The hydrodynamic component of turbulence is attenuated up to 25 dB. Thereby the acoustic signals of interest can be identified and diagnosed with a reliable resolution...

GRAS AL0007 Clips for 1/4” intensity microphones
Material: Black POM

GRAS AL0007 Clips for 1/4” intensity microphones

Microphone clips 12 mm and 25 mm for side-by-side mounting of a pair of 1/4” intensity microphones...

GRAS AL0013 1/4" Microphone Holder, Stainless Steel
Material: Stainless steel Dimension: For 1/4” Special feature: Freely adjustable

GRAS AL0013 1/4" Microphone Holder, Stainless Steel

The GRAS AL0013 is an adapter for mounting a microphone set (microphone/preamplifier) on tripods having a standard 1/4” UNC-20 male thread. The adapter is provided with a clamp for attaching a 1/4" diameter preamplifier...

GRAS AM0069 Windscreen for 1/2" Microphones

Outer diameter: 90 mm
Hole diameter: 12 mm
Material: Foam

GRAS AM0069 Windscreen for 1/2" Microphones

AM0069 contains 5 spherical windscreens for 1/2" microphones optimized for sound pressure measurements under free-field conditions...

GRAS AM0071 Windscreen for 1/4" Microphones

Outer diameter: 90 mm
Hole diameter: 6 mm
Material: Foam

GRAS AM0071 Windscreen for 1/4" Microphones

AM0071 contains 5 spherical windscreens for 1/4" microphones optimized for sound pressure measurements under free-field conditions...

GRAS AM0363 Windscreen for 1" Microphones

Outer diameter: 90 mm
Hole diameter: 23 mm
Material: Foam

GRAS AM0363 Windscreen for 1" Microphones

AM0363 contains 5 spherical windscreens for 1" microphones optimized for sound pressure measurements under free-field conditions...

GRAS AM0364 Windscreen for Array Microphones

Outer diameter: 40 mm
Hole diameter: 6 mm
Material: Foam

GRAS AM0364 Windscreen for Array Microphones

AM0364 contains 6 spherical windscreens optimized for 1/4" dedicated array microphones, or other 1/4" microphone sets mounted in array modules PR0001 & PR0002...

GRAS AM0376 Windscreen for Intensity Probes

Diameter x length: 95 x 190 mm
Slot for standard Intensity Probe
Material: Foam

GRAS AM0376 Windscreen for Intensity Probes

The AM0376 is an elliptical windscreen for use with GRAS Sound Intensity Probe 50GI...

GRAS RA0001 Right-angled (90º) Adapter for 1/2" microphone and 1/4" preamplifier

Length: 10 mm
Inner threading for preamp.: 5.70-60 UNS-2
Outer threading for mic.: 11.70-60 UNS-2
Material: stainless steel

GRAS RA0001 Right-angled (90º) Adapter for 1/2" microphone and 1/4" preamplifier

The RA0001 is a right-angled adapter for using a 1/2" microphone with a 1/4" preamplifier. It can be used with any standard 1/2" microphone and 1/4" preamplifier such as the GRAS 26AC. The RA0001 could be useful in situations where the microphone has to be flush mounted on a wa..

GRAS RA0003 Adapter for 1/2" microphone and 1/4" preamplifier

Length: 10 mm
Inner threading for preamp.: 5.70-60 UNS-2
Outer threading for mic.: 11.70-60 UNS-2
Material: stainless steel

GRAS RA0003 Adapter for 1/2" microphone and 1/4" preamplifier

The GRAS RA0003 is a straight adapter, for placing between a 1/2" microphone and a 1/4" preamplifier...

GRAS RA0006 Right-angled (90º) Adapter for 1/4" Microphone and 1/4" Preamplifier

Length: 9 mm
Inner threading for preamp.: 5.70-60 UNS-2
Outer threading for mic.: 5.70-60 UNS-2
Material: stainless steel

GRAS RA0006 Right-angled (90º) Adapter for 1/4" Microphone and 1/4" Preamplifier

The RA0006 is a right-angled adapter for using a 1/4" microphone with a 1/4" preamplifier. It can be used with any standard 1/4" microphone and 1/4" preamplifier such as the GRAS 26AC. The RA0006 could be useful in situations where the microphone has to be flush mounted on a..

GRAS RA0016 20 dB Attenuator for externally polarized 1/2" microphones

Length: 47.5 mm
Diam.: 12.70 mm

GRAS RA0016 20 dB Attenuator for externally polarized 1/2" microphones

Recommendation: Choose a microphone with low sensitivity instead of using the RA0016. The RA0016 is a 20 dB attenuator for inserting between a 1/2" microphone and preamplifier. It will attenuate the output signal of the microphone by 20 dB in order to avoid overloading the preamplifier. The ..