Hey everyone, this is Mason from zZounds, here to tell you a few things to know about the MXR Dyna Comp. This is an all-time classic pedal used by the likes of David Gilmour to help compress their guitar tone, get a better sound on leads, and it couldn't be easier to use. All you have are really two controls: You have one to set the output -- or the volume level that this pedal puts out -- and one for the sensitivity. And what that does is sort of set the threshold for when this pedal will engage and help even out your volume. So, for example, if you want to just smooth out some of the louder sounds and bring them down to a level comparable with everything else, you can turn it down. If you want to completely squash your sound and get that compressed, like funky sound, turn it all the way up, and all of your dynamics will be totally evened out. There's a lot of range on this, even though it is only two controls, but it's a really fun one to play around with and stack with other pedals to see what you can do. It's the MXR Dyna Comp -- check it out at zZounds.