I just installed the Alpine 7996 head unit with JL Audio XR 6.5 seperates in the front and Boston Pro 6.5 seperates in the rear. These speakers are powered by one JL Audio 300/4 Amp. I installed one 10" W7 subwoofer in a standard box enclosure with one 500/1 JL Audio Amp. powering that. I am considering on adding another 300/2 Amp to give the speakers twice the power. Am I going overboard???