Sound Equipment - HiFi Subwoofer

[buttrapinpirate]

So I'm looking into a new sub that will match my speakers, I currently have two B&W Diamond 805's. I love the things to death but they've turned me into a bit of an audiophile, and right now I'm rockin a 150W sub with an 8" cone, and really want something that can match the 200W per channel that I'm throwing on the B&W's. I have two options, either A. Buy a subwoofer from the likes of B&W, Klipsch or Velodyne or something expensive as hell, or B. Build a subwoofer myself with relatively comparable specs for about 1/3 the price. The only problem with that is, does anyone know how great the components like the amps are and stuff? Because I'm also not going to be building a shitty trunk styled car sub that's just loud - I'm looking for fidelity. I'm really kind of new to that whole field. Sorry for the rant, but hopefully someone knows at least something? I really don't want to join audioholics or some shit like that

 

[Laurent.]

It's harder trying to try and reinvent the wheel.I've heared a lot of good things about the Velodyne SPL1200 Ultra.

 

[buttrapinpirate]

Velodyne makes some great stuff but at 3k I really can't afford that is the problem. One of those would if I could moments... It's a little large for my needs anyways, I don't need 1,200 watts in a subwoofer, I probably only need about half of that. But thanks for the suggestion. I was looking at an SVS sb12 although it's a little underpowered, especially for a sealed box. But we can probably kill this thread as I doubt a ton of people are going to really care/know about HiFi subs