Pre-5250SD-12000
Front components-Fusion NV-12000
Subwoofer-Kenwood 3012-5000
Amp-SoundStream TRA 680.4-13000
Total=42000 (But this is an excellent setup)
If u can spend a little more, get a branded 4AWG wire kit.
Streetwires ZNX21K-4500.
Putting the sub in a sealed or ported enclosure is totally upto u.
Ported=loud but inaccurate
Sealed=not as loud but accurate.