Earthworks M23R

The M Series has become the accepted standard for affordable, reliable reference and measurement microphones that are accurate in the time domain and frequency response. They are remarkably stable with respect to temperature and atmospheric conditions and are optimized for clean, very fast impulse performance providing accurate wideband response with virtually no handling noise.

The M23R is a precision engineered 23kHz omnidirectional measurement microphone ideally suited for 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.

• 30kHz flat frequency response

• Ideally suited for 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

• 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

• Operating Temp Range: -10 deg C to +40 deg C ( 14 deg. F to 104 deg. F)

• Storage Temp Range: -20 deg C to +50 deg C ( -4 deg. F to 122 deg. F)

• Re-calibration recommended every five (5) years

• Frequency Response: 3Hz -23kHz

• Polar Pattern: Omnidirectional

• Sensitivity: 34mV/Pa (-29dBV/Pa)

• Power Requirements: 24-48V Phantom, 10mA

• Max Acoustic Input: 140dB SPL

• Output: XLR (pin 2+)

• Output Impedance: 65 balanced (between pins 2 & 3)

• Min Output Load: 600 between pins 2 & 3

• Noise: 20dB SPL equivalent (A weighted)

• Dimensions L x D: 165mm x 22mm (6.5 x .860 inches)

• Weight: .36 lb. (160g)