This is one thing that I would like to share. I have been testing my system SQ buy matching the seem to be perfect wattage to each driver. does that make sense? starting with my morel piccolos. At 100watts or less they sound great, but at 150watts or more they light up like the 4th of July! one word awesome! so I found that there is no one amp, that is on the market that can achieve what my drivers are looking for. My midrange which is a Morel CDM54 needs a little less, a good 100watts make the voice present and true! and helps the midbass out a great deal, when there are bass notes and the bass player is going down the strings its like your playing the instrument. Now my Dynaudio MW182 he is another beast. he likes double the power so that he can keep up with the high end, and with 347watts to each of them in the door he is a happy camper! I have tried a four channel amp and the power requirements for each driver had me all over the place. now the system is tighter in tune, meaning that I don't have to drastic changes in sound going from the B-52s to Snoop doggie Dog. It just seems like all my system is well feed So as a recap I have a wide variance in wattage going to each driver, and it made a huge difference.