side-Address Condenser Microphone with Multiple Polar Pattern Options

Model# SU-KSM44A/SL

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 Preamplifier Technology: Class A, discrete, transformerless preamplifier provides transparency, extremely fast transient response and no crossover distortion. Minimizes harmonic and intermodulation distortions.	• Subsonic filter eliminates rumble from mechanical vibration below 17 Hz.
• 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	• Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs)
• Multiple polar patterns�cardioid, omnidirectional and bidirectional�for maximum flexibility in a wide variety of recording applications	• 3-position switchable low-frequency filter helps reduce unwanted stand vibration noise or counteract proximity effect
• Dual 1 inch, externally biased, ultra-thin, 2.5 �m, 24 Karat gold-layered, low mass diaphragms provide superior frequency response	• Integrated three-stage �pop� protection grille reduces plosives and other breath noise
• Premium electronic components and gold-plated internal and external connectors

Details
Cartridge 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