Shure KSM40C Large Diaphragm Cardioid Condenser Microphone Kit

About: Shure KSM40C Large Diaphragm Cardioid Condenser Microphone Kit

Featuring a precision engineered 1” capsule, the KSM40C delivers natural, detailed audio with rich low-end, and high frequency detail that sits beautifully in a mix without brightness or harshness. A proprietary backplate design controls diaphragm behavior to eliminate sharp resonances. The uniform cardioid polar pattern focuses the source while minimizing room and bleed, making placement fast and predictable in multi-mic sessions or less than ideal spaces, and smooth proximity effect gives more creative control. An included shock mount and pop filter isolates the microphone from rumbles and vibrations and blocks out plosives. Also includes hard mount, premium case and threaded adapter.​ Ideal for capturing rich nuances in vocals and instruments including upright bass, guitar amps and kick drum.

• 1” Capsule delivers natural, detailed audio with rich low-end
• Uniform cardioid polar pattern for predictable placement
• Extremely low self-noise
• Sleek, modern design with premium materials
• Shock mount, pop filter & accessory suite
• Ideal for capturing rich nuances in vocals and instruments including upright bass, guitar amps and kick drum

1” Capsule Delivers Natural, Detailed Audio with Rich Low-End

Precision engineered 1” capsule delivers smooth, high frequency detail that sits beautifully in a mix without brightness or harshness. A proprietary backplate design controls diaphragm behavior to eliminate sharp resonances. 

Uniform Cardioid Polar Pattern for Predictable Placement

Focuses on the source while minimizing room and bleed, making placement fast and predictable in multi-mic sessions or less than ideal spaces. The smooth proximity effect gives more creative control: move closer for a larger-than-life sound or pull back for a more neutral tone. 

Extremely Low Self-Noise

Supports building of clean tracks with more headroom. Capture quiet passages, add gain and compression when needed without hiss building up. 

Sleek, Modern Design with Premium Materials

Lightweight, aluminum construction adds durability while keeping the mic intentionally lighter for easier placement on boom stands. Precision-machined steel grille showcases the mic’s gold-layered capsule.

Shock Mount + Pop Filter & Accessory Suite

The included shock mount and detachable pop filter dampen undesired noises including rumbles, vibrations and plosive “pop” sounds. Premium carrying case tailored to store the mic in its shock mount. Threaded adapter and additional set of 8 shock mount bands also included. 

Specifications

• Type: Condenser 
• Polar Pattern: Cardioid
• Frequency Response: 20 to 20,000 Hz
• Output Impendance: 70 Ω +/- 5
• Sensitivity (at 1 kHz, open circuit voltage): -33.5 dBV/Pa [1] (21 mV)
• Self-Noise: 7.5 dBA
• Signal-to-Noise Ratio: 86.5 dB
• Maximum SPL (1 kHz at 1% THD)
  • No Pad
    • 1000 Ω load
      • 134 dB SPL
    • 2500 Ω load
      • 138 dB SPL
    • 5000 Ω load
      • 138 dB SPL
  • With 15 dB Pad
    • 1000 Ω load
      • 149 dB SPL
    • 2500 Ω load
      • 153 dB SPL
    • 5000 Ω load
      • 153 dB SPL
• Polarity: ​Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
• Connector: Three-pin professional audio (XLR), male, balanced
• Housing: Machined, anodized aluminum alloy
• Power Requirements: 48V DC phantom power (5.6 mA), IEC standard 61938, P48
• Weight: 0.63 lbs (285 g)

What's in the Box​

• 1x KSM40C Large Diaphragm Condenser Microphone
• 1x Shock Mount
• 1x Magnetic Pop Filter
• 1x Set Replacement Shock Mount Bands (8)
• 1x Threaded Adapter
• 1x Premium Zippered Carrying Case