242 e-series tower speakers

[Quickdraw]

Sad to say, but I'm a little disappointed in the wetsounds factory stereo in my new e-series. The sub is a joke--very little sound even comes out of it let alone any bass. I got the fusion app that allows me to crank up the power going to the sub, but still nothing to write home about. I'd like to add some high quality tower speakers and am wondering if the wetsounds factory amp is sufficient to run these or will I need to add another amp? Thanks!!!