I have my cvr 12's ported at 37Hz with a 600D in a 4cuft seperate chamber box., but why get a box thats only good for one type of sub. Would the SPL aspect make any difference whatsoever? Basically my (2) 12's would sound like (4) 12's using a Doubleshot box?? People have told me that the SQ is fabulous, but I only need some SPL advise here? How much would the spl go up using their doubleshot box?
thanks
thanks
