Maybe the output level for the Comp patch is way high. That is really the only time I get noise from a comp. They are pretty quiet usually. You might also look into where it is placed in the effect chain. If it is last or far down the line from the guitar it will amplify noise from other effects. It is usually best right after the guitar like first or second in the chain. I don't know if the Tonelab lets you move them or not. But if you can, change the order and turn the output level down on the Comp patch. See if that helps.Originally Posted by tot_Ou_tard