Integer Audio Current Drive Amplifier
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Integer Audio


Introducing Integer Audio

Integer Audio is a boutique builder of high-end, professional audio equipment.  Our products are developed using the latest design tools to optimize and fine tune the circuit design and component layout.  Parts are utilized because they are the best choice for the application not lowest cost.  Integer Audio delivers high quality and reliability.

Integer RMP2, Ribbon Microphone Preamplifier

Ribbon microphones have unique characteristics that lend themselves to using a specialized preamp that can optimize performance.  These characteristics include low sensitivity, input impedance considerations and no phantom power requirement.  The ideal preamp requires low noise, considerable gain and high input impedance.
Integer Audio's Ribbon Microphone Preamp, the RMP2, is a transparent microphone preamp optimized for ribbon microphones.  It features:
  • Two channels
  • Very low noise and distortion
  • 80dB gain and high input impedance
  • Completely balanced with NO transformers or capacitors in the signal path​
  • Compact portable size, great for remote location recording​
  • Also an excellent choice with dynamic and tube microphones  ​ ​  

Current Drive Amplifier

Introducing Integer Audio's unique Current Drive Amplifier (or Transconductance Amplifier).
Over 99% of the commercially available audio amplifiers are based on voltage control.  However the speaker's voice coil requires current (not voltage) to provide motive force.  Current drive eliminates several speaker distortion mechanisms inherent with voltage control and speaker
non-linearities. 
Current Drive amplifiers are ideally suited for full range single driver speakers (no crossover).  Mechanical damping is critical with current drive.  The speaker should have a free air Qms less than two, sealed enclosure and fully packed with acoustic stuffing to provide damping.  Baffle step and frequency response can be corrected with the addition of a MiniDSP front end.  Integer Audio can supply single driver full range speakers and MiniDSP as part of a complete system.

Current Drive Amplifier features:
  • Two channels, 25 watts/channel into 8 ohms
  • Class A operation
Websites supporting the Current Drive concept:
current drive technology
Current drive & single driver speakers
current vs voltage measurements

A couple of Integer RMP2's in use behind John Williams!

Integer RMP2 Sound Samples
Samples with Mesanovic Model 2S

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  • Home
  • RMP2 Details
  • Contact / Order
  • Endorsements
  • Artist Releases
  • About