The Earthworks M23 is a precision-engineered small-diaphragm condenser microphone with an ultra-flat frequency response extending up to 23kHz. Designed for uncompromising accuracy, it is the go-to choice for room acoustics analysis, sound system calibration, loudspeaker design, and quality control. This omnidirectional measurement mic is trusted by top pro audio companies and is a staple in high-end acoustic measurement systems. Available individually or as a matched pair, the M23 delivers exceptional performance at an unbeatable value, making it the perfect tool for professionals who demand precision and reliability.

Features

• Flat frequency response to 23kHz
• Fast impulse response and excellent polar characteristics
• Meets or exceeds ANSI Type 1 and applicable IEC 61094 requirements
• Includes individual mic calibration chart with measured open-circuit sensitivity and frequency response curve
• Electronic Calibration File (ECF) available upon registration

Specifications

• FREQUENCY RESPONSE: 3Hz -23kHz
• POLAR PATTERN: Omnidirectional
• SENSITIVITY: 36mV/Pa (-28.9dBV/Pa)
• POWER REQUIREMENTS: 24-48V Phantom, 10mA
• 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)