Out of curiosity, how big is this room you are listening in? If you offloaded the bass from the receiver to a sub and you still managed to push into clipping, this must be a very large room..either that or your ears are ringing. Once you get your tweeters wired in, please measure the output with a SPL meter to see how loud you are playing. I suspect, you are well into the 90s ...and thats hearing damage loud. Just something you should consider.