This demo shows how you can use the Curveball Jr as a clean preamp, in the SideTrak loop of a BigRock Pro. This lets you patch the system into any power amp(in this video I used a 5150 power amp), and switch between the tones with 1 click. I also show how you can use the Curveball to get parked wah tones. For more info and to order one, go to Amptweaker.com