I figured I was going to be a little bored this weekend, so I thought, hey, let's test out my HK525 and see where clipping starts. So I borrowed a o-scope from work, and thought how am I gonna do this? I figured pumping some sine waves off a CD through the receiver and scoping the output would do the trick. I haven't done it yet, but I just wanted to know if there's a better way? Aaron.