These are cool bass limiters. Preserves the tone well and has an enhance knob that does a mid scoop thing so this can be your go to box for slapping. I bet this would be great for guys who use alder bodied basses or other fingerstyle setups. You can get that ash body, single coil slap sound quickly. I setup my bass for the best slap tone at the bass so the enhance knob is a little over the top for me. I have to bite the bullet and get a studio quality compressor for what I'm looking for. It's in perfect shape with the box and manual. Used on 1/2 a dozen gigs. I paid $50 new. $35 shipped.