1. 45CC Headphone Test Fixture
    Precise support for all headphone sizes
    High quality measurement microphones
    IEC 60318-1 ear simulators
    ITU-T Rec. P51 mouth simulator
    Easy in-situ calibration

    G.R.A.S. 45CC Headphone Test Fixture

    The 45CC is a a flexible and configurable platform for dual-channel testing of headphones and headsets. It has multiple configuration options: microphones, IEC 60318-1 ear simulators and mouth simulator. It can be adjusted very precisely to support different headphone/headset designs and sizes, and therefore it is in a league of its own with respect to accuracy and repeatability. It is equally well suited for QC and PL testing.

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  2. AL0030 Production Line Acoustic Test Chamber
    Self Insertion Loss: >25 dB
    CCP Microphone set

    G.R.A.S. AL0030 Production Line Acoustic Test Chamber

    G.R.A.S. AL0030 is an acoustical test chamber for production line testing of mobile devices such as cell phones, tablets, Bluetooth speakers etc. Learn More
  3. 45CA Headphone/Hearing-protector Test Fixture
    ISO: 4869-3
    IEC: 60318-1 and 60318-4 depending on configuration

    G.R.A.S. 45CA Headphone/Hearing-protector Test Fixture

    The G.R.A.S. 45CA Hearing-protector Test Fixture is a versatile test fixture for measuring sound isolation of hearing-protectors according to ISO 4869-3 and ear- and headphones according to IEC60318-1 or 60318-4.
    For testing hearing-protectors according to ANSI/ASA S12.42, choose G.R.A.S. 45CB.

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  4. 46BD 1/4" Pressure Set
    Freq range: 4 Hz to 70 kHz
    Dyn range: 44 dB(A) to 166 dB
    Sensitivity: 1.45 mV/Pa

    G.R.A.S. 46BD 1/4" CCP Pressure Standard Microphone Set

    The 46BD is a 1/4" CCP microphone set for pressure measurements. Learn More
  5. 46BE 1/4" Free-field Set
    Freq range: 4 Hz to 80 kHz
    Dyn range: 35 dBA to 160 dB
    Sensitivity: 4 mV/Pa
    Use: For general acoustic diagnostics

    G.R.A.S. 46BE 1/4" CCP Free-field Standard Microphone Set

    The G.R.A.S. 46BE is a 1/4" Constant Current Power CCP free-field microphone set for measuring high sound pressure levels at high frequencies. It is terminated with a 10/32 UNC microdot female connector and is TEDS compatible. The equivalent traditional 200 V LEMO type is G.R.A.S. 46BF.

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  6. 46BL 1/4" Pressure Set, High Sensitivity
    Freq range: 4 Hz to 20 kHz
    Dyn range: 25 dB(A) to 147 dB
    Sensitivity: 18 mV/Pa

    G.R.A.S. 46BL 1/4" CCP Pressure Standard Microphone Set, High Sensitivity

    The 46BL is a high-sensitive, low-noise 1/4" CCP condenser microphone set with rear-venting.

    The set consists of a 40BL 1/4" CCP Pressure Microphone, High Sensitivity and a 26CB 1/4" preamplifier with Microdot connector.

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  7. 40PP CCP Free-field QC Mic
    Freq range: 10 Hz to 20 kHz
    Dyn range: 32 dB(A) to 128 dB
    Sensitivity: 50 mV/Pa

    G.R.A.S. 40PP CCP Free-field QC Microphone

    The G.R.A.S. 40PP Production-Line Test Microphone is a robust, cost-effective microphone designed for use in production-line testing of loudspeakers and acoustic transducers. It has a wide frequency range reaching up to 20 kHz and a large dynamic range from <32 dB(A) to 128 dB.

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  8. 40PP-S1 CCP Free-field QC Mic, High Pressure
    Freq range: 10 Hz to 20 kHz
    Dyn range: 32 dB(A) to 142 dB
    Sensitivity: 10 mV/Pa (± 3 dB)

    G.R.A.S. 40PP-S1 CCP Free-field QC Microphone, High Pressure

    The G.R.A.S. 40PP-S1 QC Microphone, High Pressure is a robust, cost-effective microphone designed for use in production-line testing of loudspeakers and acoustic transducers. It has a wide frequency range reaching up to 20 kHz and a large dynamic range from <32 dB(A) to 142 dB.

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  9. 40PK CCP Free-field QC Mic, Short
    Freq range: 10 Hz to 20 kHz
    Dyn range: 26 dB(A) to 145 dB
    Sensitivity: 18 mV/Pa

    G.R.A.S. 40PK CCP Free-field QC Microphone, Short

    The 40PK is a  free-field microphone for Quality Control and measurements in confined spaces. It has a wide frequency range reaching up to 20 kHz and a large dynamic range from <26 dB (A) to 145 dB.

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