Earthworks M23 G2 23 kHz Measurement Microphone
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Earthworks M23 G2 23 kHz Measurement Microphone
The Earthworks M23 G2 is a precision-engineered 23 kHz omnidirectional measurement microphone designed for professional acoustical analysis, system calibration, and room tuning. As part of Earthworks' renowned M-Series, it upholds the legacy of accurate and repeatable measurement performance trusted by audio professionals since 1995.
This pre-polarized condenser microphone delivers an exceptionally flat frequency response from 5 Hz to 23 kHz (±1 dB), ensuring highly accurate capture across the audible range. With an extremely low self-noise level of 23 dBA and high SPL handling up to 140 dB SPL (P48), the M23 G2 provides clean, distortion-free performance for demanding studio and live applications. Its reduced 1 kHz sensitivity enhances compatibility with a wide range of interfaces and measurement systems.
Built with rugged machined stainless steel and featuring an IP54 environmental rating, the M23 G2 is ideal for both field and laboratory use. Its low power consumption and precision tuning make it an essential tool for sound engineers, acousticians, and system integrators requiring reliable, high-resolution measurement data.
Key Features
- Flat Frequency Response: ±1 dB from 5 Hz to 23 kHz for precise acoustic measurement
- High SPL Capability: Handles up to 140 dB SPL (48V phantom power) without distortion
- Omnidirectional Pattern: Ensures accurate free-field response and consistent measurements
- Low Self-Noise: 23 dBA noise floor for clean and reliable readings
- Low Power Draw: Consumes just 7.2 mA at 48V for extended battery and transmitter life
- Durable Build: Machined stainless steel housing with IP54 dust and water resistance
- Optimized Sensitivity: Improved 1 kHz sensitivity for universal interface compatibility
- Designed and Assembled in the USA: Expertly tuned for long-term precision and stability
Technical Specifications
- Microphone Type: Pre-polarized condenser
- Diaphragm Size: 6 mm
- Polar Pattern: Omnidirectional
- Flat Frequency Range (±1 dB): 5 Hz – 23 kHz
- Low Frequency Cutoff (-3 dB): ≤ 3 Hz
- High Frequency Cutoff (-3 dB): ≥ 30 kHz
- Sensitivity: -40 dBV/Pa (10 mV/Pa) ±2 dB
- A-weighted Self-Noise: 23 dBA
- Maximum SPL (3% THD): 140 dB SPL (P48), 133 dB SPL (P12)
- Power Requirements: P48 (7.2 mA) / P12 (4.8 mA)
- Minimum Load Impedance: 1 kΩ
- IP Rating: IP54
- Construction: Machined stainless steel
- Dimensions (L × W): 5.5 × 0.86 in (13.9 × 2.18 cm)
- Weight: 0.28 lb (0.13 kg)
- Color: Silver
- Country of Origin: USA
- Warranty: 2 years
