plans needed for thl828 or tsw218, thank

hello, if you check my profile pic im look to build new bass cab to go with my thl4 prototypes the bass cab under the tops i think are a modified turbosound speaker they are w574-h574-d735 FQ range 35hz-180hz, the tops are w574-h1200-d770 running them 35hz-180hz bass, 180hz-20khz mid/tops,,,, anyway someone else built the bass cabs and i cant find any plans that are same, anyone have any plans or advice thanks for your help, regards notoriouspm

look at the plan of Esbph218 and the Usb plan they are similar of turbosound i have the plan of tsw 218 but if it is correct at the expention and I am not hand over

hi thanks for your reply. i would like to see the plans for218 as my bass bin are forward firing, thanks for your help, regards notoriouspm

I cant think off hand of any good forward firing free plan 18" bhp cabs, ill go through my plans folder and have a look....

my cabs w574-h574-d735, bandpass horn PD18" driver no labels they are ruffly the same size of thl818 just abit deeper, they sound great but need to build more the same really, but my thl4 prototypes are w574-h1200-d770, tsw218 would be nice as replacemet using the same driver, thank for your help. oh i cant look at tiggersound?....regards notorious-pm