Right now i have a jbl 1200.1 going to two brahmas in a sealed box each with 1.1 cubic feet running at 2 ohms. I was considering a earthquake shredder but after what you guys/gals have said about it i am backing away from that idea. Even though i know a good deal about car audio i know nothing about the costs or what is necessary for upgrading an amp. If i were to upgrade it i would want to be able to run them at .5 ohm, and obviously want more power from the amp, 2000+ watts 2400 would be nice. My other option would be to buy another jbl 1200.1 off of ebay for 200-225, i have looked into very high output competition amps and the ones i would want cost more than two jbls so that idea is out for now. I was wondering how much would it cost (if its even possible) to upgrade my current jbl amp to those specs or would I just be better off getting a second. Also, do any of you know a affordable place that is good that would be able to do this? As of now i dont want to build a bigger box for space reasons. Thanks.