Measurement microphone cartridges

Measurement microphones are available in many types covering various frequency ranges, dynamic ranges and application situations. Selecting a microphone involves a number of choices, which can be summarized as:

• Prepolarized vs. Externally-polarized
• Free-field, Pressure or Random-incidence
• Dynamic range & Frequency range

 

GRAS 40AC 1/2" Ext. Polarized Free-field Microphone, Wide Frequency

Freq range: 3.15 Hz to 40 kHz
Dyn range: 20 dBA to 164 dB
Sensitivity: 12.5 mV/Pa

GRAS 40AC 1/2" Ext. Polarized Free-field Microphone, Wide Frequency

The 40AC is an IEC 61094 WS2F classified ½” externally polarized free-field, wide-frequency microphone with rear-venting. The prepolarized equivalent is GRAS 40AM...

GRAS 40AD 1/2" Prepolarized Pressure Microphone, High Sensitivity

Freq range: 3.15 Hz to 10 kHz
Dyn range: 16 dB(A) to 148 dB
Sensitivity: 50 mV/Pa

GRAS 40AD 1/2" Prepolarized Pressure Microphone, High Sensitivity

The 40AD is an IEC 61094 WS2P ½" prepolarized pressure microphone with rear-venting. The externally polarized equivalent is GRAS 40AP..

GRAS 40AE 1/2" Prepolarized Free-Field Microphone

Freq range: 3.15 Hz to 20 kHz
Dyn range: 15 dB(A) to 148 dB
Sensitivity: 50 mV/Pa

GRAS 40AE 1/2" Prepolarized Free-Field Microphone

The GRAS 40AE is a 1/2" Prepolarized free-field microphone for measuring medium sound pressure levels at medium frequencies. The equivalent externally polarized 200 V type is GRAS 40AF...

GRAS 40AF 1/2" Ext. Polarized Free-field Microphone

Freq range: 3.15 Hz to 20 kHz
Dyn range: 14 dBA to 149 dB
Sensitivity: 50 mV/Pa

GRAS 40AF 1/2" Ext. Polarized Free-field Microphone

The GRAS 40AF is a 1/2" Externally Polarized free-field microphone for measuring medium sound pressure levels at medium frequencies. The equivalent prepolarized 0 V type is GRAS 40AE...

GRAS 40AG 1/2" Ext. Polarized Pressure Microphone

Freq range: 3.15 Hz to 20 kHz
Dyn range: 20 dBA to 164 dB
Sensitivity: 12.5 mV/Pa

GRAS 40AG 1/2" Ext. Polarized Pressure Microphone

The 40AG is an IEC 61094 WS2P ½" externally polarized pressure microphone with rear-venting. It is a high-precision condenser microphone made according to IEC 61094-4 requirements and is ideal for coupler measurements in both laboratory and production environments. It is extremely robust and reliabl..

GRAS 40AM 1/2" Prepolarized Free-Field Microphone, Wide Frequency

Freq range: 3.15 Hz to 31.5 kHz
Dyn range: 20 dB(A) to 163 dB
Sensitivity: 14.5 mV/Pa

GRAS 40AM 1/2" Prepolarized Free-Field Microphone, Wide Frequency

The 40AM is an IEC 61094 WS2F classified ½” prepolarized free-field, wide-frequency microphone with rear-venting. The externally polarized equivalent is GRAS 40AC...

GRAS 40AN 1/2" Ext. Polarized Free-field Microphone, Low Frequency

Freq range: 0.5 Hz to 20 kHz
Dyn range: 14 dBA to 149 dB
Sensitivity: 50 mV/Pa

GRAS 40AN 1/2" Ext. Polarized Free-field Microphone, Low Frequency

The 40AN is an IEC 61094 WS2F classified ½” externally polarized free-field, low-frequency microphone with rear-venting. The prepolarized equivalent is GRAS 40AZ...

GRAS 40AO 1/2" Prepolarized Pressure Microphone

Freq range: 3.15 Hz to 20 kHz
Dyn range: 20 dB(A) to 163 dB
Sensitivity: 12.5 mV/Pa

GRAS 40AO 1/2" Prepolarized Pressure Microphone

The 40AO is an IEC 61094 WS2P ½" prepolarized pressure microphone with rear-venting. Read about the externally polarized equivalent [40AG] It is a high-precision condenser microphone made according to IEC 61094-4 requirements and is ideal for coupler measurements in both laboratory and production e..

GRAS 40AO-FV 1/2" Prepolarized Pressure Microphone, Front Vented

Freq range: 3.15 Hz to 20 kHz
Dyn range: 20 dB(A) to 163 dB
Sensitivity: 12.5 mV/Pa

GRAS 40AO-FV 1/2" Prepolarized Pressure Microphone, Front Vented

The 40AO-FV is an IEC 61094 WS2P ½" prepolarized pressure microphone with rear-venting. It is a high-precision condenser microphone made according to IEC 61094-4 requirements and is ideal for coupler measurements in both laboratory and production environments. It is extremely robust and reliable an..

GRAS 40AP 1/2" Ext. Polarized Pressure Microphone, High Sensitivity

Freq range: 3.15 Hz to 10 kHz
Dyn range: 16 dBA to 149 dB
Sensitivity: 50 mV/Pa

GRAS 40AP 1/2" Ext. Polarized Pressure Microphone, High Sensitivity

The 40AP is an IEC 61094 WS2P ½" externally polarized pressure microphone with rear-venting. It is a high-precision condenser microphone made according to IEC 61094-4 requirements and is ideal for coupler and boundary measurements in both laboratory and production environments. It is extremely robus..

GRAS 40AP-FV 1/2" Ext. Polarized Pressure Microphone, High Sensitivity, Front Vented

Freq range: 3.15 Hz to 10 kHz
Dyn range: 16 dBA to 149 dB
Sensitivity: 50 mV/Pa

GRAS 40AP-FV 1/2" Ext. Polarized Pressure Microphone, High Sensitivity, Front Vented

The 40AP-S1 is an IEC 61094 WS2P ½" externally polarized pressure microphone with front venting. It is a high-precision condenser microphone made according to IEC 61094-4 requirements and is ideal for coupler and boundary measurements in both laboratory and production environments. It is extremely r..

GRAS 40AQ 1/2" Prepolarized Random Incidence Microphone

Freq range: 3.15 Hz to 12.5Hz
Dyn range: 16 dB(A) to 148 dB
Sensitivity: 50 mV/Pa

GRAS 40AQ 1/2" Prepolarized Random Incidence Microphone

The 40AQ is an IEC 61094 WS2P/D ½" prepolarized random-incidence microphone with rear-venting. It is a high-precision condenser microphone made according to IEC 61094-4 requirements, optimized to measure sound correctly in random, diffuse, and reverberant sound fields. It is extremely robust and rel..