NTI M4261Measurement Microphone for XL2 - Class 2

The M4261 is a calibrated, omni-directional class 2 measurement microphone running from 48V Phantom power. It shows excellent linearity over a wide dynamic range from 27 dB SPL up to 144 dB SPL.
The microphones are 48V phantom powered and include an electronic data sheet. The Automated Sensor Detection (ASD) of the XL2 Analyzer automatically reads this data, i.e. the microphone model and calibration data. This promotes faster setup and ensures accurate measurements.
The microphone bodies contain the preamplifier. They combine high dynamic range and wide frequency range with low noise. The M4261 microphones connect via the ASD Cable to the XL2 Audio and Acoustic Analyzer, e.g. for measurements at remote locations or to reduce acoustic reflections.
 
Features:
Omni-directional, free-field microphone
Phantom power 48 VDC
Electronic data sheet installed
Frequency range 5 Hz - 20 kHz
Individual frequency response available as Excel-data
Optional calibration certificate
 
Specifications:
Consisting of: M4261 microphone with permanently installed capsule
Microphone Type: Omnidirectional, pre-polarized condenser, free field microphone
Classification: Class 2
Capsule/Transducer: 1/4" permanently installed
Flatness Tolerance Bands: +1/-4.5 dB @ 5 Hz - 20 Hz; ±1.5 dB @ >20 Hz - 4 kHz; ±3 dB @ >4 kHz - 10 kHz; ±4.5 dB @ >10 kHz - 16 kHz; ±5 dB @ >16 kHz - 20 kHz
Frequency Range: 5 Hz - 20 kHz
Residual Noise Floor: 27 dB(A)
Maximum SPL: 142 dBSPL
Sensitivity: 36 dBV/Pa ±3 dB (16 mV/Pa)
Temperature Coefficient: < ±0.02 dB / °C
Temperature Range: 32°F to 104°F
Pressure Coefficient: -0.04 dB / kPa
Influence of Humidity (non-condensing): < ±0.4 dB
Humidity: 5% to 90% RH, non-condensing
Output Impedance: 100 Ohm balanced
Power Supply: 48 VDC phantom power, 3 mA typical
Connector: Balanced 3-pole XLR
Dimensions (Diameter x Length): 0.8" x 5.9"
Weight: 2.39 oz
Environmental Protection: IP51