Now I have my 18's in a ported box and thinking of trying a bandpass wall. I seen a few guys setup on YouTube with DP 15's in a 4th order and it looks pretty impressive but I know they aren't recommended to be in a sealed box. Thinking of going with just a 2 to 1 ratio and giving the 18's around 6 or 7 cubes sealed and as much as possible ported. Really want a low end monster that moves a lot of air for a daily setup that can play all music. Was told around 2 cubes sealed is about good for 18's just leery of going through this and it not working out. Planned on facing them all forward in a triangle but the loading wall is what confuses me because I don't understand how you tune the opening (port). Thanks
