XLR Microphone Class 1

MP30-XLR condenser microphone set consists of a ½” microphone capsule with preamplifier and MP48 IEPE-XLR adapter.

It can be connected to all USB audio devices with 48 volt phantom power.

MP30-XLR is a class 1 measurement microphone according to the WS2F frequency response industry standard.

The low noise floor of less than 16 dB(A) and the linear frequency response of 10 Hz to 20 kHz is ideally suited for almost any precision measurement.

MP30-XLR

½” Free Field Microphone

Class 1 and WS2F according to IEC 61094-4
Sensitivity 40mV/Pa
IEPE constant current supply 2-20 mA | Bias: 12.5 Volt
Polar Pattern: Omnidirectional
Frequency Response: 10 Hz – 20 kHz
Acoustic noise floor 16 dB A-weighted
Measuring range 16 dB(A) to SPL Peak (3% Dist.) 135 dB

Scope of delivery:

½” microphone capsule pre-polarized
½” IEPE mic preamp
MP48 XLR to IEPE adapter

MP30 Microphone Capsule	IEC 61094-4 Type WS2F
Diameter	1/2″
Frequency Range	4 Hz ~ 10 Hz ± 1.5 dB 10 Hz ~ 4 kHz ± 0.5 dB 4 kHz ~ 20 kHz ± 2.5 dB
Responce Type	Free field
Electrode Forming Voltage	0 V
Sensitivity (dB re 20 μPa)	40 mV/Pa (± 1.5 dB)
Capacitance at 250 Hz	18 pF
SPL Max. at 250 Hz Distortion <3%	135 dB
Intrinsinc Noise Level	16 dB (A)
Operating Temperature Range	-20 °C ～ +60 °C
Operating Humidity Range	25 % ～ 90 %(RH)
Temperature Characteristics	0.01 dB/C° Maximum
Humidity Characteristics	0.001 %(RH)
Aging Drift	0.2 dB/Year
Storage Temperature Range	-20 °C ～ +60 °C
Storage Humidity Range	25 % ～ 90 %(RH)
Venting	Rear
Outer Dimensions	Ф 13.2 mm x 16.0 mm
Weight	8.3 gram

MP30	Preamplifier
Frequency Response (re. 250 Hz)	0.1 Hz ~ 10 Hz ± 3 dB 10 Hz ~ 20 kHz ± 0.1 dB 10 Hz ~ 200 kHz ± 0.2 dB
Gain	0.04 dB
Intrinsic Noise (20Hz ~ 20kHz)	< 5 μV A-weighting
Distortion (THD) @1kHz 1 V	< 0.1%
Output Impedance	＜50Ω
Max. Output Voltage	6.5 Volt^{RMS @ 21 Volt IEPE DC Offset}
IEPE Power Voltage	18 V ~ 30 V \| Bias : 12.5 Volt
IEPE Current	2 mA ~ 20 mA
Polarization Voltage	0 V
Dimensions	Ф 12.7mm × 70 mm
Weight	< 20 g (cable not included)
Operating Temperature	– 20°C ~ + 60°C
Humidity	25 %～ 90 %(RH)
Atmospheric Pressure	65 kPa～108 kPa
Connector Type	BNC
Thread for Microphone Capsule Mounting	11.7 mm-60 UNS

The acquisition, measurement and analysis of sound and vibration data is carried out using studio technology, USB audio converters.

In this presentation, IEPE sensors, a measurement microphone and a triaxial acceleration sensor are calibrated with the scientific NVH analyser software.

A 4-channel Focusrite Scarlett 18i8 3rd Gen converter is used for this purpose. The NVH Analyser software communicates via the ASIO protocol so that all ASIO-capable devices are compatible with the software.

MP48

NVH Analyser Softwarewith 4 channel USB audio interface

NVH Analyser Software
with 4 channel USB audio interface