Looking for a simple quiet parametric. Just one or two bands would be fine. I mostly use passive PBass into an early B-15n. I like to cut mids pre-amp to get my driven tone right while keeping it big... Just used a DOD Boneshaker which did pretty well but would like the option of keeping it cleaner than that. I have an Orange Two Stroke coming in the mail. I've used it on guitars before and it might work for this. The Q is pretty tight on it but not adjustable. I have also used a StoneDeaf PDF-2 but it is not tweak able...has a mind of it's own. I've seen the Yamaha Nathan East pedal around....would have to try one to see if it does what I want. Any tips?