• True bypass
  
• Sustain control adjusts the amount of sustain.
• Volume control sets the output level.
• Attack toggle switch provides 3 switch selectable settings of attack: fast, medium, slow
• Fast attack: gives an aggressive hit with about a 20mS rise time. fast and musical.

One of finest compressors ever built for guitar or bass, the Electro-Harmonix Soul Preacher is an effect pedal that offers 3 selectable attacks coupled with silky, long sustains. The switch selectable attacks offer super articulate compression. Let your guitar step forward without squeezing the life out of your tone. Heavenly sustain ...sonic salvation.