I'm looking to get the best subwoofer in terms of below 20Hz extension I can for about $1200. Amongst commercial options it seems the PSA XS30 is probably the best for my goal. I'm in a rather small closed off room so I'll be getting plenty of room gain.
I had initially written off DIY since it seemed intimidating, but I saw the DIYsoundgroup.com flat pack stuff and I thought it wouldn't be too bad for me to build one.
So basically, within my price range of $1200, what gets me better below 20hz extension: PSA XS30, or an easy DIY build like flat packs?
Right now I'm looking at building 2x 4 cu ft flat packs with a Stereo Integrity 18" in each, all run by a single amp. I can run two subs off a single amp, right? I heard the iNuke 3000DSP was good, not really well versed in this area though.