5 in stock

SKU: Instruō_.[1]f Maker: Types: , ,


The Instruō [1]f is a crossfader, attenuator, attenuverter and manual DC offset.

Whether you want to crossfade between two audio signals, attenuate an envelope, invert a sawtooth LFO for ramped modulation, or use a DC offset to access the Mod parameters of your arbhar, [1]f is the perfect multi-utility for all of your CV processing tasks.

[1]f | noun (utility) because one is one



  • Crossfader
  • Attenuator & Attenuverter
  • Unipolar positive or unipolar negative DC offset
  • DC coupled for both audio and control voltage processing
  • Bicolour LED indication of output voltage


  • width: 2HP
  • depth: 27mm
  • power: +12V: 8mA, –12V: 8mA