KSM44MP

Large Diaphragm Multi-Pattern Condenser Microphone

The Shure KSM44A (often sold as the KSM44A/SL or in pairs as the KSM44/SL-PAIR) is a premium, professional large-diaphragm multi-pattern condenser microphone engineered for elite studio recording and critical live broadcast applications. It is highly regarded for its exceptionally low self-noise, ultra-transparent acoustic reproduction, and extreme versatility across vocals and acoustic instruments.Dual-Diaphragm Capsule DesignAt the heart of the microphone is an advanced acoustic design tailored for precise polar response and minimal proximity effect:

• Dual 1-Inch Diaphragms: Features dual externally biased, ultra-thin (2.5 micron), 24-karat gold-layered, low-mass Mylar® diaphragms to ensure superior transient response.
• Three Selectable Polar Patterns: A front-panel switch toggles between Cardioid (for isolation and rear rejection), Omnidirectional (for natural room ambiance and zero proximity effect), and Bidirectional/Figure-8 (for face-to-face duets or Blumlein stereo setups).
• Prethos® Advanced Preamplifier Technology: Incorporates Shure’s proprietary Prethos internal circuitry, which minimizes component distortion and achieves an incredibly low self-noise specification.

Key Specifications

• Transducer Type: Condenser (Externally biased dual 1-inch diaphragms, 2.5 µm, gold-layered Mylar)
• Selectable Polar Patterns: Cardioid, Omnidirectional, Bidirectional (Figure-8)
• Frequency Response: 20 Hz – 20,000 Hz
• Self-Noise Equivalent SPL (A-weighted): 5 dBA (Cardioid), 7 dBA (Omnidirectional), 8 dBA (Bidirectional)
• Maximum SPL: Up to 150 dB SPL (with -15 dB pad engaged, depending on load)
• Attenuator Switch (Pad): 0 dB or -15 dB
• Low-Frequency Filter Switch: Flat, –6 dB/octave below 115 Hz, or –18 dB/octave below 80 Hz
• Output Connector: 3-pin professional audio (XLR), male
• Power Requirements: 48 V DC phantom power (5.9 mA)
• Dimensions: 47.6 mm x 171.1 mm (1.87 in. x 6.74 in.)
• Net Weight: 295 g (0.295 kg / 10.4 oz)
• Included Accessories: Shock mount, magnetic pop filter, swivel mount/adapter, and carrying case [1, 2, 3, 4, 5, 6, 7, 8]

Acoustic Controls & Performance FeaturesThe microphone body houses two premium discrete switches to tailor the audio capture to varying acoustic environments:

• Low-Frequency Filter Switch: A 3-position switch that offers a choice of flat response, a -6 dB/octave cutoff below 115 Hz (to smooth out proximity effect), or a steep -18 dB/octave roll-off below 80 Hz (to eliminate low-end room rumble and mechanical floor vibrations).
• Attenuation Pad Switch: A -15 dB switchable pad allows the microphone to handle extremely high sound pressure levels (SPL) from sources like close-miked guitar amplifiers or drum overheads without distorting the capsule or internal preamp.
• Internal Pop Protection: Built with an integrated three-stage mesh grille that acts as an acoustic shield to reduce plosives ("P" and "B" pops) and breath noise without choking the high-frequency air.

Premium Construction & Protection

• Class A Transformerless Circuitry: Eliminates cross-over distortion and improves linear response across the entire audible spectrum, delivering transparent lows and smooth, uncolored highs.
• Zinc Die-Cast Housing: Protected by a heavy-duty, durable zinc die-cast housing and a hardened steel mesh grille to safeguard the sensitive internal electronics.
• Internal Shock Mount: The capsule is internally shock-mounted to drastically reduce structure-borne handling noise.
• DetailsVersatility for Every Session.
• Selectable polar patterns: Cardioid, Omnidirectional and Bidirectional
• Flat response with subtle high-frequency emphasis
• Optimized polar consistency & low-frequency rejection
• Ultra-low self noise
• Sleek, modern design
• Shock mount, magnetic pop filer and premium accessory suite
• Ideal for vocals, pianos, stereo techniques, distant miking, and ensembles

In the Box

• 1 KSM44MP Dual Diaphragm Multi-Pattern Condenser Microphone
• 1 Shock Mount
• 1 Magnetic Pop Filter
• 1 Premium Zippered Carrying Case
• 1 Swivel-Mount Mic Clamp (Hard Mount)
• 1 Set Replacement Shock Mount Bands (8)
• 1 Threaded Adapter