Descripción
The 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.
Specifications
Frequency Response: 9Hz to 30kHz ±1/-3dB
Polar Pattern: Omnidirectional
Sensitivity: 34mV/Pa (-29dBV/Pa)
Power Requirements: 6V Battery Type P28 (2CR-1/3N, 4LR44 or equivalent)
Max Acoustic Input: 140dB SPL
Output: XLR (pin 2+)
Output Impedance: 65Ω balanced (between pins 2 & 3)
Min Output Load: 600Ω between pins 2 & 3
Noise: 20dB SPL equivalent (A weighted)
Dimensions L x D: 220mm x 22mm (8.65 x .860 inches)
Weight: .4 lb. (180g)
