need some help as the website is a little scarce on details I have 1200watts (600x2 actually), and im thinking of two si d2's sealed in 1 cu ft each good idea or no? #2 for those that have one can yo do me a favor a)whats the mounting depth b)overall diameter c)OVERALL depth (from magnet to surround trying to see if I can fit two of these or not thx