Synthrotek Head Out


The Head Out module has stereo line level outputs and a stereo headphone output. The line level L and R outputs have attenuators, and are intended to accommodate hifi/pro audio equipment. The headphone output utilizes a 2164 VCA-based circuit, allowing for plenty of volume.

The headphone circuit operates independently of the line level circuit, so all outputs can be used simultaneously.


  • L and R input (L input normals to R input)
  • L and R line level outputs with attenuators
  • Attenuation trimmer (to set max output of stereo headphone jack )
  • Stereo headphone output with attenuator


  • Module width: 2HP
  • Module depth: 25mm
  • Current draw
    • +12V: 40mA
    • -12V: 38mA