burps

1x1 steel cage welded in- all mdf bolted to it I've yet to see 3 18s across- and stacked 2 tall in a vehicle yet, so I thought it'd be a change.. 6 18's- 7K- 3 Batcap 3000s- 2 alts.. 36cu ft. internal after sub n port displacement. 460sq in of port- tuned to 34hz. No #'s yet- will post em...