The KSM44A is a premium, large-diaphragm, side-address condenser microphone with multiple polar pattern options (cardioid, omnidirectional, bidirectional). It features an externally biased, dual 1-inch diaphragms, extensive internal pop filtering and Prethos™ Advanced Preamplifier Technology for a ground-breaking threshold minimum of self-noise. The KSM44A is the premier choice for the highest level of professional studio and stage performance.
The document provides a technical overview of the Shure KSM44A Multi-Pattern Large Dual-Diaphragm Side-Address Condenser Microphone. It highlights key features such as Prethos™ Advanced Preamplifier Technology, dual 1-inch externally biased diaphragms, and switchable polar patterns including cardioid, omnidirectional, and bidirectional.
Detailed specifications are listed for the three available models: KSM44A (Cardioid), KSM44A/SL (Omnidirectional), and KSM44A/B (Bidirectional). The text includes data on sensitivity, self-noise, signal-to-noise ratio, distortion, dynamic range, and maximum sound pressure levels for both 1000 Ω and 2500 Ω loads.
| Frequency Response | 20 to 20,000 Hz |
|---|---|
| Output Impedance | 50 ohms |
| Attenuator Switch | 15 dB |
| Low-Frequency Filter Options | Flat, –6 dB/octave below 115 Hz, or –18 dB/octave below 80 Hz |
| Power Requirements | 11–52 V DC phantom power (IEC-61938) |
| Common Mode Rejection | > 50 dB |
| Connector Type | Three-pin professional audio (XLR), male, balanced |
| Sensitivity (Omnidirectional) | -37 dBV/Pa† (14.8 mV) |
The microphone offers cardioid, omnidirectional, and bidirectional options.
The typical self-noise is 4 dB SPL-A for the cardioid model.
It requires 11–52 V DC phantom power according to IEC-61938 standards.