for 200.00 it's hard to go wrong with either. Both companies make good products, the gto subs are decent performers on their own...they won't break any spl records, but they sound good within their power range, and certainly good enough for normal music listening. DD makes excellent, expensive subs that have a great reputation everywhere, so I can't see them building a simple ported box so bad that their sub won't perform well within it's limits. Again these are 300 watt systems that aren't geared towards irritating neighbours, but to music listeners. Personally, I like the DD set up a little more, so if it was me, I'd get that one.

I get vurbually assaulted 5 days out of each month by a woman...
you will have to do alot better than that to offend me.....no offence taken :smilie_da

if I had to personally choose between the two I would take the DD

lol preach!

if you put a woofer in a bassworx box with 2 inches of excusion and kilowatt of power and rifle the everloving crap out of it, you will get port noise from lots of boxes prefabbed or not.....like i said before, prefabs arent for everyone or every woofer but lots of times the work just fine

prefabs= fail custom sealed box easy sound way better

If the prefab is properly built with sufficient volume and tuned to the frequency you want, a custom built box isn't going to do anything more. Just because someone custom builds a 2 cubic foot box with a 12x2.5x 34" port, won't make it sound better than a prefab that has the same specs. Rarely is construction integrity the issue. There are some very well manufactured prefabs that will more than do the job. The problem is it's very hard to find the exact box for the exact sub that you want to use. I've run into more than a few prefabs that had the mounting hole cut out so large that the sub was swimming in it. Others had ports the size of toilet paper rolls, and finding the internal volume you want is always difficult. That said, if you find a well built prefab that has the volume you need, the port volume required for the tuning, and the price is good...get it!