Phile, you really should try to A/B them side by side if possible. I owned the Power Plant for about 2 months and sold it after a comparison with the Power Co. In my system the Power Plant delivered clarity and focus to the soundstage with a slight increase in presance, but it also made the sound sort of lean. With the Power Co., noise floor dropped a couple of notches and sounded smoooooth, but still very dynamic. It was a struggle because i really loved the clarity and transparency of the Power Plant, but the leaness of the sound forced me to go with the Power Co. I feel these products are very system dependant so i think you should try them both out on your system. Good Luck! PS-Power Plant did not have multi-wave option.