One Control

ONE CONTROL Crimson Red Bass Preamp

Designed by BJF, as with all One Control pedals, The Crimson Red Bass Preamp is a boost pedal specifically tuned to bass that invokes the sounds of 60's and 70's. This is the sound of vintage 15" and 18" amps with vintage vibe and personality - deep, bold, and slightly distorting.


  • New design by Björn Juhl in Sweden
  • Specifically designed for use with bass
  • True bypass switching
  • Battery compartment
  • Input impedance: 620K
  • Output impedance: 25K max
  • Voltage: 9~15VDC
  • Current consumption: 1mA @ 9VDC
  • S/N ratio: -80dB
  • Size 100 x 39 x 31mm (excluding protruding parts)
  • Size 100 x 47 x 46mm (including protruding parts)
  • Weight: approx 160 grams (200 grams with batteries included)