Don’t Sacrifice Accuracy For Cost With TheEarthworks M23 23 kHz Omnidirectional Measurement MicrophoneThe M30 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.PerformanceKnown for its reliable performance, the M23 delivers unparalleled audio results at an affordable cost. It has a flat frequency response that extends from 9Hz to 23kHz, an exceptionally consistent omnidirectional polar response, 138dB SPL rating without distortion and no handling noise.Immune to most temperature and atmospheric fluctuations, the M23 delivers reliable and repeatable results in any environment.Extremely fast impulse response and linear phase response make the M23 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 M23 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.23kHz flat frequency responseCost effective measurement microphoneImproved version of the SMAARTMIC previously offered by EAWIdeally suited for acoustical measurements sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is requiredOmnidirectional polar patternFlat frequency response, fast impulse response and exceptional polar characteristicsUsed by SMAART, MLSSA, Spectrafoo, TEF and RTA in addition to acoustic measurement systems manufactured by dbx, DEQX and othersMeets or exceeds ANSI Type 1 and applicable IEC 61094 requirementsEach M Series microphone is delivered with its own calibration chart providing its individually measured open-circuit sensitivity and the frequency response curveElectronic Calibration File availableOperating Temp Range: -20 deg C to +60 deg C ( -4 deg. F to 140 deg. F)Storage Temp Range: -40 deg C to +80 deg C ( -40 deg. F to 176 deg. F)Humidity: Up to 90%Re-calibration recommended every five (5) yearsFrequency Response: 9Hz to 23kHz 1/-3dBPolar Pattern: OmnidirectionalSensitivity: 34mV/Pa (-29dBV/Pa)Power Requirements: 24 48V Phantom, 10mAMax Acoustic Input: 138dB SPLOutput: XLR (pin 2+)Output Impedance: 65 balanced (between pins 2 & 3)Min Output Load: 600 between pins 2 & 3Noise: 20dB SPL equivalent (A weighted)Dimensions L x D: 165mm x 22mm (6.5 x .860 inches)Weight: .35 lb. (160g)Manufacturer:EarthworksModel:M23SKU:I280226-N-0-WHXXUPC: 827517000558We are Chuck Levin’s Washington Music CenterSince 1958, Chuck Levins Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Musicfrom instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE lineexclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levins isnt just a storeits a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.