Here I boosted the input of a 5150 crunch channel using the Amptweaker Curveball Jr, and show you a bunch of variations you can get with it.....well, mostly how tight it can sound. There's also a section at the end of how you can do the Parked Wah sounds with it. This was recorded on a M-Audio Microtrak, iPhone for the video, using a PRS Santana SE, into a block letter 5150 and a Kustom birch ply 412 with V30 speakers.