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AKG Acoustics C 400 BL

Pricing & Availability

  • MSRP: $169
  • Discontinued


C 400 BL Documentation

HypercardioidAKG Acoustics C 400 BL

Hypercardioid Boundary Microphone

  • Small and inconspicuous boundary layer microphone
  • Speech optimized frequency response
  • Hypercardioid polar pattern
  • Easy to repaint

The C 400 BL is the first choice for any application calling for a small, low-profile boundary layer microphone. Its uses range from conferencing and lectures to theaters, surveillance, paging, and many others. Its frequency response has been optimized for speech pickup.

Its hypercardioid polar pattern, speech optimized frequency response, and extremely small dimensions have made the C 400 BL extremely popular. The design is inconspicuous and the housing can be painted easily in any color to make it almost invisible against its backing.

The electret capsule is p/n 2846M0601.

The AKG Acoustics C 400 BL is also known as: C400BL, C 400 BL.


Frequency Response - HypercardioidClick Graph to Compare!
C 400 BL Hypercardioid Frequency Response Chart
Pickup Patterns Pads & Filters
Hypercardioid (13.5 mV/Pa; 150 to 15,000 Hz)
Capsule Dimensions Impedance SPL/Noise
n/a 200 Ohms (Low) Max SPL: 115 dB
Weight Length Max Diameter Interface(s)
5g (0.18oz) n/a n/a
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 9 to 52v

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