Product Overview
Shure's 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. The KSM44A/SL includes ShureLock® suspension shock mount, ShureLock® stand mount, carrying case, and velveteen pouch.
Includes
- KSM44A Large Diaphragm Multi-Pattern Condenser Microphone
- ShureLock Stand Mount
- Zippered Carrying Case
- ShureLock® Elastic Shock Mount
- Suspension Shock Mount Elastic Cord, Cristal (contains two)
- Protective Velveteen Pouch
Features
- 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
- 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)
- 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.
- 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
Specifications
- Type: Dual-Diaphragm, Externally-Biased Condenser
- Polar Pattern (selectable): Cardioid, Omnidirectional, Bidirectional
- Frequency Response: 20 to 20,000 Hz
- Output Impedance: 50 Ω
- Sensitivity, open circuit voltage, @ 1 kHz, typical:
- Cardioid: –31 dBV/Pa[1] (29.8 mV)
- Omnidirectional: –37 dBV/Pa[1] (14.8 mV)
- Bidirectional: –36 dBV/Pa[1] (16.8 mV)
- Maximum SPL, 1 kHz at 1% THD:
- Cardioid
- Pad Off, 2500 Ω load: 134 dB
- Pad Off, 1000 Ω load: 131 dB
- Pad On, 2500 Ω load: 150 dB
- Pad On, 1000 Ω load: 147 dB
- Omnidirectional
- Pad Off, 2500 Ω load: 140 dB
- Pad Off, 1000 Ω load: 137 dB
- Pad On, 2500 Ω load: 152 dB
- Pad On, 1000 Ω load: 149 dB
- Bidirectional
- Pad Off, 2500 Ω load: 139 dB
- Pad Off, 1000 Ω load: 136 dB
- Pad On, 2500 Ω load: 151 dB
- Pad On, 1000 Ω load: 148 dB
- Signal-to-Noise Ratio
- Cardioid: 90 dB
- Omnidirectional: 88 dB
- Bidirectional: 86.5 dB
- Dynamic Range @ 1 kHz
- Cardioid
- 2500 Ω load: 130 dB
- 1000 Ω load: 127 dB
- Omnidirectional
- 2500 Ω load: 134 dB
- 1000 Ω load: 131 dB
- Bidirectional
- 2500 Ω load: 131 dB
- 1000 Ω load: 128 dB
- Clipping Level, 20 Hz to 20 kHz, 1% THD
- 2500 Ω load: 9 dBV
- 1000 Ω load: 6 dBV
- Self Noise, equivalent SPL, A-weighted, typical
- Cardioid: 4 dB SPL-A
- Omnidirectional: 6 dB SPL-A
- Bidirectional: 7.5 dB SPL-A
- Common Mode Rejection, 10 to 100,000 kHz: ≥50 dB
- Attenuator Switch: -15 dB
- Low-Frequency Filter Switch: Flat, –6 dB/octave below 115 Hz, or –18 dB/octave below 80 Hz
- Connector: Three-pin professional audio (XLR), male, balanced
- Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
- Power Requirements: 11–52 V DC[4] phantom power (IEC-61938), 5.8 mA, maximum
- Weight: 492 g (17.4 oz.)