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Shure KSM44A Multi-Pattern Condenser Mic Crystal

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A large dual-diaphragm side-address condenser mic offering cardioid, omnidirectional and bidirectional patterns.

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" diaphragms, extensive internal pop filtering and Prethos Advanced Preamplifier Technology for a groundbreaking threshold minimum of self-noise. The KSM44A is an exceptional choice for a high level of professional studio and stage performance.

A milestone achievement in sound reinforcement, Prethos Advanced Preamplifier Technology employs transparent internal circuitry architecture that enables you to achieve unprecedented audio quality and performance.


  • Prethos Advanced Preamplifer Technology: Class-A, discrete, transformerless preamplifier provides transparency, extremely fast transient response and no crossover distortion, as well as minimizes harmonic and intermodulation distortions
  • 4dB of self-noise and max SPL of 131dB for a total dynamic range of 127dB—an increase of 7dB for cleanly nuanced audio capture
  • Multiple polar patterns—cardioid, omnidirectional and bidirectional—for maximum flexibility in a wide variety of recording applications
  • Dual 1", externally biased, ultrathin, 2.5 m, 24K 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 17Hz
  • Switchable 15dB 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
  • Includes ShureLock Suspension Shockmount, ShureLock stand mount, carrying case and velveteen pouch

Give yourself a nice versatile mic by ordering the KSM44A today.


KSM44A Multi-Pattern Condenser Mic Specifications:

  • Cartridge type: Dual-diaphragm, externally biased condenser
  • Polar Pattern: Cardioid, omnidirectional, bidirectional
  • Frequency response: 20 to 20,000Hz
  • Output impedance: 50 ohm
  • Attenuator switch: 15dB
  • Low-Frequency filter switch: Flat, -6dB/octave below 115Hz, or -18dB/octave below 80Hz
  • Power requirements: 11–52V DC phantom power (IEC-61938) 5.8 mA, maximum
  • Common Mode Rejection (10 to 100,000Hz): > 50dB
  • 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
  • Sensitivity (open circuit voltage, @ 1kHz, typical)
  • Cardioid: –31dBV/Pa  (29.8 mV)
  • Omnidirectional: –37dBV/Pa  (14.8 mV)
  • Bidirectional: –36dBV/Pa  (16.8 mV)
  • Self Noise (equivalent SPL, A-weighted, typical)
    • Cardioid: 4dB SPL-A
    • Omnidirectional: 6dB SPL-A
    • Bidirectional: 7.5dB SPL-A
    Preamplifier Distortion (at 1kHz, 94dB SPL)
    • Cardioid, Omnidirectional, Bidirectional: <0.001%
    • Signal-to-Noise Ratio
    • Cardioid: 90dB
    • Omnidirectional: 88dB
    • Bidirectional: 86.5dB
    • Clipping Level (20Hz to 20kHz, 1% THD)
    • Cardioid, Omnidirectional, Bidirectional: 2,500Hz: load9dBV
    • Cardioid, Omnidirectional, Bidirectional: 1,000Hz: load 6dBV
    • Dynamic Range (@ 1kHz)–2,500Hz load
    • Cardioid: 130dB
    • Omnidirectional: 134dB
    • Bidirectional: 131dB
    • Dynamic Range (@ 1kHz)–1,000Hz load
    • Cardioid: 127dB
    • Omnidirectional: 131dB
    • Bidirectional: 128dB
    • Maximum SPL (1kHz at 1% THD)*–2,500Hz load:
    PAD OFF:
    • Cardioid: 134dB SPL
    • Omnidirectional: 140dB SPL
    • Bidriectional: 139dB SPL
    PAD ON:
    • Cardioid: 150dB SPL
    • Omnidirectional: 152dB SPL
    • Bidriectional: 151dB SPL
    • Maximum SPL (1kHz at 1% THD)*–1,000Hz load:
    PAD OFF:
    • Cardioid: 131dB SPL
    • Omnidirectional: 137dB SPL
    • Bidriectional: 136dB SPL
    PAD ON:
    • Cardioid: 147dB SPL
    • Omnidirectional: 149dB SPL
    • Bidriectional: 148dB SPL

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