Accessories

Accessories

G.R.A.S. Sound & Vibration offers a wide range of standard accessories in the form of cables, adapters, windscreens and tripods for use in measuring set-ups. These can be broadly split up under accessories for microphones, preamplifiers and outdoor microphones. Some are included with certain products, some are available as extras. All can be ordered individually. The brief descriptions given here as well as those on downloadable accessories sheet will help you to select what you need for your particular set-up. At all events, feel free to contact your local representative if you need advice or further information.

G.R.A.S. Sound & Vibration also offers a wide range of special products and customised solutions. Our experience within the field of acoustics and vibration, combined with our short development time, enable us to provide innovative solutions to complex measurement problems in close co-operation with the customer. For a technical discussion of your measurement requirements, please contact your local representative or contact G.R.A.S. Sound & Vibration directly in Denmark.

  1. RA0168 Digital Barometer

    G.R.A.S. RA0168 Digital Barometer

    This precision barometer has an LCD which can display (toggle button) either the static-pressure correction (e.g. -0.13 dB) for a pistonphone or the ambient static pressure (e.g. 997 hPa).

    This product is intended as optional accessory for pistonphones which as standard has an analogue barometer included i.e. for G.R.A.S. 42AA, 42AC & 42AC-S2. When used for correction of these, the accuracy is improved.

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  2. RA0503 Mounting Adapter for 1/8” Flush-mount Microphone Set

    G.R.A.S. RA0503 Mounting Adapter for 1/8” Flush-mount Microphone Set

    The G.R.A.S. RA0503 is a non-conductive mounting adapter for 1/8" flush-mount microphone sets.

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  3. RA0502 Mounting Adapter for 1/4” Flush-mount Microphone Set

    G.R.A.S. RA0502 Mounting Adapter for 1/4” Flush-mount Microphone Set

    The G.R.A.S. RA0502 is a non-conductive mounting adapter for 1/4" flush-mount microphone sets.

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  4. RA0501 Mounting Adapter for 1/2” Flush-mount Microphone Set

    G.R.A.S. RA0501 Mounting Adapter for 1/2” Flush-mount Microphone Set

    The G.R.A.S. RA0501 is a non-conductive mounting adapter for 1/2" flush-mount microphone sets.

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  5. 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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  6. 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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  7. 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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  8. RA0086 Transmitter Adapter for 1/4" microphones

    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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  9. 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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  10. GR1297 Aluminum fairing

    G.R.A.S. GR1297 Aluminum fairing

    Fairing in black-anodized anodized aluminum for use with G.R.A.S. 40LA & 40LS Precision surface microphones instead of the silicon-rubber fairing included with the microphone. The aluminum fairing is used for mounting on flat surfaces.

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  11. AM0375 Windscreen for 67AX

    Outer diameter: 90 mm (1/2 spherical)
    Windscreen for G.R.A.S. Ground Array microphones
    Material: Foam

    G.R.A.S. AM0375 Windscreen for 67AX

    The AM0375 is a "half spherical windscreen" specially designed and optimized for use with 67AX, 67BX and 67AD  Ground Array microphones for sound pressure measurements under free-field conditions, e.g. in situations where you want to reduce wind noise.

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  12. 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 Type 26AC.

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  13. 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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  14. 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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  15. 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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  16. 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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  17. 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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  18. 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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  19. 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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  20. 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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