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By: Shure
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Microphones, Headphones & Wireless systems
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Multi-Pattern Dual Diaphragm Microphone
The Shure KSM Microphone Series KSM 44A is a premium, large-diaphragm, side-address condenser microphone with multiple polar pattern options (cardioid, omnidirectional, bidirectional). The refined and sophisticated design of the KSM-44A 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.
A milestone technical achievement, Shure’s Prethos Advanced Preamplifier Technology provides 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 transient response
Class A, discrete, transformerless preamplifier for transparency, extremely wide frequency response and no crossover distortion. Minimizes harmonic and intermodulation distortions
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
Transducer Type Condenser (externally biased)
Polar Pattern Cardioid, Omnidirectional, Bidirectional
Frequency Response 20 to 20,000 Hz
Output Impedance 50 ohms
Attenuator Switch 15 dB
Low-Frequency Filter Switch Flat, –6 dB/octave below 115 Hz, or –18 dB/octave below 80 H
Power Requirements 11–52 V DC phantom power (IEC-61938) 5.8 mA, maximum
Common Mode Rejection (10 to 100,000 Hz) > 50 dB
Common Mode Rejection (20 Hz to 20 kHz) > 50 dB
Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Net Weight 492 g (17.4 oz.)
Connector Three-pin professional audio (XLR). male, balanced



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Prices and specifications subject to change without notice.