$300 for subs and amp, huh. Well then I vote for these:
2 12" subs: http://cgi.ebay.com/2-RE-AUDIO-RE12-12-SUBS-RESONANT-ENGINEERING-SUB-pair_W0QQitemZ190195813747QQihZ009QQcategoryZ18803QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
1 amp: http://cgi.ebay.com/New-HIFONICS-ZXI6006-Car-Amp-2-1-ch-ZXI-6006-600w-RMS_W0QQitemZ200196926025QQihZ010QQcategoryZ39732QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Both for under $300 shipped.
Should be a nice little thump in either a sealed or ported box, but those subs would probably do better in a ported box.
2 12" subs: http://cgi.ebay.com/2-RE-AUDIO-RE12-12-SUBS-RESONANT-ENGINEERING-SUB-pair_W0QQitemZ190195813747QQihZ009QQcategoryZ18803QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
1 amp: http://cgi.ebay.com/New-HIFONICS-ZXI6006-Car-Amp-2-1-ch-ZXI-6006-600w-RMS_W0QQitemZ200196926025QQihZ010QQcategoryZ39732QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Both for under $300 shipped.
Should be a nice little thump in either a sealed or ported box, but those subs would probably do better in a ported box.