In reply to:

The increased enjoyment you will get from your system will be all out of proportion to the trouble and expense of installing a subwoofer

I figure I could add this later on if I feel like I am missing something. Right now I just want to get the empeg, amp, and speakers, which will greatly increase my enjoyment!

I am a number, not a free man! And that number is fifteen-thousand five-hundred sixty-two.