TRITON AUDIO FetHead Filter In-Line Microphone Preamp


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  • For Ribbon & Dynamic Microphones
  • Low-Noise Class-A JFet Amplifier
  • 22 dB Amplification
  • Double Single-Ended Amplifier Topology
  • Lots of Headroom


The FetHead Filter from TritonAudio is a low-noise, in-line microphone preamplifier with a built-in 6 dB/octave high-pass filter, which has a corner frequency of 220 Hz. It can be used with microphones that exhibit an excessive proximity effect like long-motor ribbon mics and dynamic microphones. The electronics are housed in a metal chassis with a balanced 3-pin female XLR input and a balanced 3-pin male XLR output. It is suitable for use at home, in the studio, on tour, and more.

Attach FetHead to a balanced microphone cable and plug it straight into the microphone. Switch on phantom power and enjoy clean gain. This works with any ribbon or dynamic microphone.

  • Low-noise Class-A JFet amplifier
  • 22 dB of amplification
  • Single-ended amplifier topology
  • Balanced input and output
  • Significant headroom
  • 24 to 48V phantom power

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TRITON AUDIO FetHead Filter In-Line Microphone Preamp