I did look at the reviews for the phenox gold amp, there is one reveiw saying it sounds better than the jl 300/4 swap. BUt only 1 it does however look like a promising amp.. here are the speakers i have in the front and the rear
The front is a 3 way system
Front..
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=11422

Back
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=11421