Good evening all! Alright, here is the question. I just bought a set of GNX-10's, and I am putting them in a Q-Logic box. I think its 1.0 cubic feet. I have seen mention of a poly fill....what exacatly is that? well here goes, the subs are rated at 175, so I am going to push 150 to each...but I have no clue what type of amp to go with. There are a couple on my list including alpine, MTX blue thunder, and also the Rockford Fosgate. All the amps are rated at 150x2 @ 2ohms...but as a complete idiot and untrusting of most sales people I do not know which one I should get. Money is of course an issue, and I want to keep the amp under 250 if I could. But if anyone can help me out it would be much appreciated. Thanks for the help too! Ya'll have a great day!