I own the same equipment you are speaking of.
13W7 on a 1000/1
Dont switch for anything, you'll love the SQ/SPL out of that setup. Mine is ported as per spec and I absolubely love it, and ive had many, many subs/amps. This one is great SQ, and it gets loud as fcuk!
As for the person that said the W7 is outdated smokes a little too much ganja... How can ANY great sounding subwoofer or any audio product be 'Outdated"