Looking to upgrade the old 6.5" two ways. I would like to go with seperates. I have been checking out JL's new marine seperates that are a little larger. Also have been considering Polk momo series, Phoenix gold and the lesser line of Boston Acoustics. They dont have to be marine grade. Runnning a 4 channel Phoenix Gold amp that is 40-50 watts a channel...forgot the model number but its a few years old. Any stereo guru's have any input?