What brand sub should i get?

[mylows10]

you'll need more power ,at least 4k on tap

[rebelfromva]

ssa xcon for sq. ab xfl for spl

[naughtyca]

I'd say yes for SPL but for SQ Diamond makes some nice subs.

He is looking for 4 subs, i doubt he is going to SQ

[Chriszle]

SSA Gcon, SA-12, or Obsidian 12 on that power.

[quackhead]

im not sure on the power yet, i was thinking around 2 to 3 thousand.

For 4 12's on 2k-3k watts, and looking for good sound quality, I would be looking real hard here:
MSW | Car Audio Stereo, Car Subwoofers, Car Amplifiers and Speakers
here:
WoofersEtc.com - IDQ12V3.D2 - Image Dynamics 12" IDQ Version 3 Dual 2 Ohm Subwoofer

...and this would prolly take the cake in my book:
WoofersEtc.com - SPW-1210 - Nakamichi 12" 1200 Watt Sound Quality Competition Subwoofer

As far as I am concerned, these are the best SQ subs I have ever heard:
WoofersEtc.com - 3XL-151D - Powerbass 15" Dual 1-Ohm Subwoofer ..but, as with any sub, the box and amp can have as much to do with SQ as anything.

[daveishome]

Ia

[matt_bennett05]

You'd save going w/ the XFLs from mylows and have that cash you saved to upgrade electrical. Then, finding a good 4k amp here for a decent price wouldn't be hard unless you had to have new, which I haven't had any issues out of used amps here at all ever.