The boxes/seats are ported with 2.1 cubic airspace. The are bolted but removable. The seat tops are bolted on but removable and can lock open.
These are the amps:
Mid and highs. - Soundstream - Human Reign Unleashed 4 Ch. 140 RMS Watts x 4 @ 4 Ohm.
Sub Amp. - Lanzar 7001D. 1/2 Ohm stable = 7000 RMS. -20% = 6600 RMS Watts @ 1/2 Ohm.