I just installed a sundown e10v4 D2 with an audio pipe 800 watt AP-1800 amp. every thing else in the car is factory. I didn't expect to shatter my windows with a single 10" but it just seems to really be lacking in performance. I've had single 10s that greatly out performed this setup by a mile. I really cant even get noticeable bass unless Bass Boost on my amp is all the way up and obviously that's not ideal. Am I underpowering this sub? or is there something I may have missed during installation? Any help or suggestions is greatly appreciated.