Overview
 
Shure KSM44A/SL Multi-Pattern, Large Diagphragm, Side-Address Condenser Studio Microphone (Cristal)
 
The KSM44A is a premium large-diaphragm side-address condenser microphone with multiple polar pattern options (cardioid omnidirectional bidirectional).  The refined and sophisticated design of the KSM44A 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.
 
A milestone achievement in sound reinforcement Prethos™ Advanced Preamplifier Technology employs transparent internal circuitry architectures that enable unprecedented audio quality and performance.
 
Features
 
Prethos™ Advanced Preamplifer Technology: Class A discrete transformerless preamplifier provides  transparency extremely fast transient response and no crossover distortion. Minimizes harmonic and intermodulation distortions. 
Groundbreaking specifications: 4dB of self-noise and max SPL of 131 dB for a total dynamic range of 127 dB – an increase of 7 dB that defines the new standard for cleanly nuanced audio capture
Multiple polar patterns–cardioid omnidirectional and bidirectional–for maximum flexibility in a wide variety of recording applications
Dual 1 inch externally biased ultra-thin 2.5 μm 24 Karat gold-layered low mass diaphragms provide superior frequency response
Premium electronic components and gold-plated internal and external connectors
Subsonic filter eliminates rumble from mechanical vibration below 17 Hz.
Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs)
3-position switchable low-frequency filter helps reduce unwanted stand vibration noise or counteract proximity effect
Integrated three-stage “pop” protection grille reduces plosives and other breath noise