For microphones

For microphones

  1. AM0071 Windscreen for 1/4" Microphones

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

    G.R.A.S. AM0071 Windscreen for 1/4" Microphones

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

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  2. RA0092 Rain-protection Cap for array microphones

    G.R.A.S. RA0092 Rain-protection Cap for array microphones

    Cap for rain protection of G.R.A.S. array microphones G.R.A.S. 40PR and 40PQ. It also fits QC microphones 40PP and 40PK.

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  3. RA0086 Transmitter Adapter for 1/4" microphones

    Length: (excl. connector): 37.5 mm
    Diameter: 6.35 mm
    Material: stainless steel

    G.R.A.S. RA0086 Transmitter Adapter for 1/4" microphones

    The G.R.A.S. RA0086 is similar to the G.R.A.S. RA0067 but is used with a 1/4" externally polarised microphone (typically a G.R.A.S. 40BP) which can then be used as a high-impedance sound source, e.g. when calibrating an acoustic coupler such as the G.R.A.S. RA0045. The RA0086 has a microdot connector.

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  4. RA0073 Adapter for 1" microphone and 1/2" preamplifier

    Length: 63 mm
    The thick end is provided with:
    Inner threading for preamp.: 11.70-60 UNS-2
    Outer threading for mic.: 23.11-60 UNS-2
    Material: stainless steel

    G.R.A.S. RA0073 Adapter for 1" microphone and 1/2" preamplifier

    The RA0073 is an adapter for using a 1˝ microphone with a ½˝ preamplifier.
    The influence of the RA0073 on the acoustic field is minimal.

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  5. RA0067 Transmitter Adapter for 1/2" microphones

    Length (excl. connector): 47.50 mm
    Diam.: 12.70 mm

    G.R.A.S. RA0067 Transmitter Adapter for 1/2" microphones

    The G.R.A.S. RA0067 enables a prepolarized 1/2" microphone (typically a G.R.A.S. Type 40AD) to be used as a high-impedance sound source.
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  6. RA0063 Adapter for 1/8˝ microphone and 1/4" preamplifier

    Length: 17 mm
    Inner threading for preamp.: 5.70-60 UNS-2
    Outer threading for mic.: M3
    Material: stainless steel

    G.R.A.S. RA0063 Adapter for 1/8" microphone and 1/4" preamplifier

    The RA0063 is an adapter for using a 1/8" microphone with a 1/4" preamplifier. It can be used with any standard 1/8" microphone and 1/4" preamplifier such as the G.R.A.S. 26AC.

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  7. RA0022 1/4" Nosecone

    Length: 36.7 mm
    Outer diameter: 7.0 mm
    Threading (mic. protection grid threading): 6.35-60 UNS-2
    Material: stainless steel
    Weight: 7 g 

    G.R.A.S. RA0022 1/4" Nosecone

    The RA0022 is specially designed and optimized for use with 1/4" microphones for sound pressure measurements, when high speed wind comes from one known direction e.g. in a wind tunnel.
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  8. RA0020-A 1/2 Nosecone, lightweight

    Length: 54.0 mm
    Outer diameter: 13.0 mm
    Threading (mic. protection grid threading): 12.70-60 UNS-2
    Material: Aluminum (black anodized)
    Weight: 15 g

    G.R.A.S. RA0020-A 1/2" Nosecone, lightweight

    RA0020-A is a nosecone for 1/2" microphones. It is similar to RA0020 but made of aluminium for lightness.

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  9. RA0020 1/2" Nosecone

    Length: 54.0 mm
    Outer diameter: 13.2 mm
    Threading (mic. protection grid threading): 12.70-60 UNS-2
    Material: Stainless steel
    Weight: 45 g

    G.R.A.S. RA0020 1/2" Nosecone

    The RA0020 is specially designed and optimized for use with 1/2" microphones for sound pressure measurements, when high speed wind comes from one known direction e.g. in a wind tunnel.
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  10. RA0019 Adapter for 1/4" microphone and 1/2" preamplifier

    Length: 70 mm
    Inner threading for preamp.: 11.70-60 UNS-2
    Outer threading for mic.: 5.70-60 UNS-2
    Material: stainless steel

    G.R.A.S. RA0019 Adapter for 1/4" microphone and 1/2" preamplifier

    The RA0019 is an adapter for using a 1/4" microphone with a 1/2" preamplifier. Its influence on the acoustic field is minimal. To reduce attenuation of the microphone signal, the guard ring of the preamplifier is extended through the RA0019.

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  11. RA0018 20 dB Attenuator for prepolarized 1/2" microphones

    Length: 47.5 mm
    Diam.: 12.70 mm

    G.R.A.S. RA0018 20 dB Attenuator for prepolarized 1/2" microphones

    RA0018 is a 20 dB attenuator for inserting between a 1/2" prepolarized microphone and preamplifier. It will attenuate the output signal of the microphone by 20 dB in order to avoid overloading of the preamplifier. The RA0018 is useful when measuring very high sound pressure levels using a preamplifier with limited dynamic range.The RA0018 will work properly only with prepolarized microphones. For externally-polarized microphones, use the RA0016.

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  12. AM0363 Windscreen for 1" Microphones

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

    G.R.A.S. AM0363 Windscreen for 1" Microphones

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

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  13. AM0364 Windscreen for Array Microphones

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

    G.R.A.S. 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.

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  14. 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

    G.R.A.S. 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 Type 26AC. The RA0001 could be useful in situations where the microphone has to be flush mounted on a wall.

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  15. 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

    G.R.A.S. RA0003 Adapter for 1/2" microphone and 1/4" preamplifier

    The G.R.A.S. RA0003 is a straight adapter, for placing between a 1/2" microphone and a 1/4" preamplifier.
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  16. 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

    G.R.A.S. 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 Type 26AC. The RA0006 could be useful in situations where the microphone has to be flush mounted on a wall.

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

    Length: 47.5 mm
    Diam.: 12.70 mm

    G.R.A.S. RA0016 20 dB Attenuator for externally polarized 1/2" microphones

    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 RA0016 is useful when measuring very high sound pressure levels using a preamplifier with limited dynamic range.

    The RA0016 will work properly only with externally polarized microphones. For prepolarized microphones, use the RA0018.

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  18. RA0017 Adapter for 1" microphone and 1/2" preamplifier

    Length: 4 mm
    Diameter: 23.77 mm
    Material: stainless steel

    G.R.A.S. RA0017 Adapter for 1" microphone and 1/2" preamplifier

    The RA0017 is a simple adapter for using a 1" microphone with a 1/2" preamplifier. It can be used with any standard 1" microphone and 1/2" preamplifier such as the G.R.A.S. 26AK.

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  19. RA0095 Dehumidifier for 1” microphones

    G.R.A.S. RA0095 Dehumidifier for 1” microphones

    For use when humidity levels are high and only with a rear-vented 1” microphone. An indicator placed on the side of the dehumidifier shows when it needs to be dried out before further use. In the case of the G.R.A.S. 40EH 1” Microphone used in the G.R.A.S. 40HF Low-noise Level Microphone System, please order only at the time of ordering a G.R.A.S. 40HF.

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  20. RA0091 Insulated 1/2” microphone protection grid

    G.R.A.S. RA0091 Insulated 1/2” microphone protection grid

    For avoiding ground loops, e.g. with G.R.A.S. RA0085 Insulated coupling for artificial ear in telephone testing set-ups using the G.R.A.S. 43AD Artificial Ear.

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