Externally polarized cartridges (200 V)

Externally-polarized microphones are used with standard preamplifiers, which have a 7-pin LEMO connector. The preamplifier should be connected to a power module or an analyzer input which can supply the preamplifier with power as well as 200 V polarization.
GRAS 40DP 1/8" Ext. Polarized Pressure Microphone

Freq range: 6.5 Hz to 140 kHz
Dyn range: 40 dB(A) to 178 dB
Sensitivity: 1 mV/Pa

GRAS 40DP 1/8" Ext. Polarized Pressure Microphone

The 40DP is an IEC 61094 1/8" externally polarized pressure microphone with rear-venting. Due to its tiny size, this high-precision condenser microphone can be used to measure very high frequency sounds without disturbing the sound field...

GRAS 40EN 1" Ext. Polarized Pressure Microphone

Freq range: 2.6 Hz to 8 kHz
Dyn range: 9.6 dBA to 146 dB
Sensitivity: 50 mV/Pa

GRAS 40EN 1" Ext. Polarized Pressure Microphone

The 40EN is an IEC 61094 WS1P 1" externally polarized pressure microphone. It is a 1" pressure microphone that is ideal for measurements in couplers used for testing earphones. When flush-mounted, it can measure sound pressures at boundaries. It is highly suited as a laboratory-standard microphone...

GRAS 40EU 1" Ext. Polarized Reference Pressure Microphone

Freq range: 2.6 Hz to 8 kHz
Dyn range: 9.6 dBA to 146 dB
Sensitivity: 50 mV/Pa

GRAS 40EU 1" Ext. Polarized Reference Pressure Microphone

The 40EU is an IEC 61094 LS1P 1” externally polarized pressure microphone that is rear-vented. It is a 1” pressure microphone that is ideal for measurements in couplers used for testing earphones. When flush-mounted, it can measure sound pressures at boundaries. It is highly suited as a laboratory-s..