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MXL FR-400M Boundary Microphone

  • Product Highlights
  • Wide Cardioid Polar Pattern
  • Internally Wired with Mogami
  • Bass Cut/Boost Switch
  • Includes a 10' XLR Cable
  • 48V Phantom Powered
Retail Price: $199.95 Instant Savings: -$52.45 You Pay: $147.50 QTY
  • Product Highlights
  • Wide Cardioid Polar Pattern
  • Internally Wired with Mogami
  • Bass Cut/Boost Switch
  • Includes a 10' XLR Cable
  • 48V Phantom Powered

Boundary Microphone


Although it's commonly used in front of a stage to pickup concerts or theater events, the FR-400M boundary mic has a wide cardioid pattern and can be used in other applications like under the lid of a piano. The switch located on the bottom of the mic can be used to boost or cut low frequencies by 6 dB in order to balance the frequency response.


  • Wide cardioid pickup pattern
  • Internally wired with Mogami cable
  • Ideal for stage, live performances, instrumental recordings and more!
  • Bass cut/boost switch
  • Includes a 10' XLR cable


  • Type: Boundary mic with 3-capsule array
  • Polar Pattern: 120 degree cardioid
  • Frequency Response: 50Hz - 16kHz
  • Max SPL: 120 dB
  • Sensitivity: 45mV/Pa
  • Output Impedance: 200 ohms
  • Operating Voltage: 48V Phantom Power
  • Signal-to-Noise Ratio: 72 dB
  • Includes: Bass Cut/Boost switch


1-Year Warranty
Guaranteed against defects in material and workmanship for 1 year from date of purchase.


Q & A

MFR Part Number
Product Category
Boundary & Tabletop Microphones
Unit of Measure
Shipping Weight
1.50 lbs.
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