I know that 3 band EQs exist on basses, a lot of them. However, I can't find one for guitar. I would like to use it in conjuction with active pickups, or passive ones. It doesn't matter. In fact, I would like it to work with Actives especially because this would go to a friend of mine who has EMSs and will switch to active Seymour Duncan Blackouts (which, BTW, look awesome).