LOL, a group of audio enthusiasts recently did a comparison between a $4,000 Halo amp and a $250 Crown Pro audio XLS 402 amp. We posted our results in the "new amp is making me grin from ear to ear" thread in the AVS Forum. Nobody present could tell which sounded better. In fact, someone on that thread sold his Halo for multiple Crowns.

They are butt ugly but who cares!