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The CM87 is a large-diaphragm, 3-pattern, dual back-plate, fet condenser microphone that features a dual diaphragm capsule with 6-micron diaphragms. It incorporates a Class "A" dual stage fet/discrete transformer coupled amplifier design with high quality through-hole components.


It is well suited for a variety of recording applications such as vocals or instruments in any studio or live application.  It can handle extreme sound pressure levels with ease.

The CM87 is built to a very high standard and offers a remarkably full yet well-defined and ultra-clean sound that is perfectly suited to the most demanding radio, dialogue and recording tasks. Its pickup pattern can be configured in omni, cardioid, or Fig-8. 

The CM87 has at least 10db more headroom than the venerable U87 circuit while retaining the same sonic response and reliability.


The CM87 excels as an affordable replacement for the expensive U87.

Recently, Sirius Satellite XM in Nashville bought over 2 dozen -CM87 microphones for their On Air Studios. Warner Brothers and Marvel Comics also use CM87 microphones to capsule vocals from voice actors on many animation series.




  • 35mm capsule with dual 6-micron skinned center-fed diaphragms
  • Capsule polarized at a maximum of 60v in Cardiod
  • High quality dual bobbin custom transformer with bi-metal laminations
  • Class "A" fet/discrete transformer-coupled circuit. 
  • 3 pickup patterns via a toggle switch on body.  Omni, Card & Fig 8.
  • maximum output level > +10dbu
  • 100hz roll-off, switched from the body
  • -10db pad, switched from the body
  • Noise: <12dB (A-weighted)
  • Distortion: 0.5% @ 126dB, and 0.5% at 136dB with -10dB pad engaged
  • Impedance: <200 ohms (load impedance<1.2K)
  • 48V requirement
  • Robust shock mount
  • Aluminum road case


CM48 Advanced Audio Microphone

  • Your microphone has been manufactured and tested to the highest quality standards by Advanced Audio Microphones. This Limited Warranty offered by Advanced Audio Microphones covers defects in material or workmanship for 2 years from the date of purchase. This warranty can be extended to a total of five years upon completion of on-line registration. We will repair or replace any Advanced Audio microphone that fails to meet factory specifications during the warranty period. 

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