Earthworks M30BX Battery Powered Omni Measurement Mic with Built-in Preamp - 5Hz-30kHz

ITEM #: ETW-M30BX MFG #: M30BX

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M30BX - Overview

The Earthworks M30BX is a precision engineered battery-powered 30kHz omnidirectional measurement microphone ideally suited for on-location acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required and portability is important or a power source is not readily available.

Performance
Designed for remote use, the M30BX body opens for replaceable battery access, with a battery life of 300 hours. This M30BX requires 6V Lithium or 4 LR44 alkaline batteries.

The M30BX's audio performance is unparalleled. It has a flat frequency response that extends from 9Hz to 30kHz, an exceptionally consistent omnidirectional polar response, 140dB SPL rating without distortion and no handling noise. With temperature compensated electronics the M30BX was built to deliver repeatable results no matter what the environment.

Extremely fast impulse response and linear phase response make the M30BX ideal for use with high-quality FFT-based real-time audio system measurement software like SMAART™, SIM™, REW™, Electroacoustics Toolbox™, FuzzMeasure™ and others, as well as for use in PA system alignment and loudspeaker design.

Every M30BX is individually hand-tuned and tested and is delivered with its own printed frequency response chart. An Electronic Calibration File (ECF) is generated for each microphone during final testing, and can be downloaded free of charge after product registration.

  • Features:

    • Microphone body opens for replaceable battery access, with a battery life of 300 hours
    • 30kHz flat frequency response
    • Ideally suited for on-location acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required and portability is important or a power source is not readily available
    • Improved version of the SMAARTMIC previously offered by EAW
    • Omnidirectional polar pattern
    • Flat frequency response, fast impulse response and exceptional polar characteristics
    • Used by SMAART, MLSSA, Spectrafoo, TEF and RTA in addition to acoustic measurement systems manufactured by dbx, DEQX and others
    • Meets or exceeds ANSI Type 1 and applicable IEC 61094 requirements
    • Requires 48V Phantom Power
    • Each M Series microphone is delivered with its own calibration chart providing its individually measured open-circuit sensitivity and the frequency response curve
    • Electronic Calibration File available
     
  • Specifications:

    • Frequency Response: 9Hz to 30kHz 1/-3dB
    • Polar Pattern: Omnidirectional
    • Sensitivity: 34mV/Pa
    • Power Requirements: 6V Battery Type P28 (2CR-1/3N, 4LR44 or equivalent)
    • Max Acoustic Input: 140dB SPL
    • Output: XLR (pin 2+)
    • Min Output Impedance: 600 Ohm
    • Noise: 20dB SPL equivalent (A weighted)
    • Dimensions L x D: 220mm x 22mm (8.65 x .860 inches)
    • Weight: .4 lb. (180g)
     
  • Item Includes:

    • ADP1 1/2? Calibrator Adapter
    • ADP2 XLR/RCA adapter
    • MC3 Microphone Clip
     
  • Warranty:

    • 15 Years
     
  • GTIN:

    0827517140001
     

M30BX - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov