Reply to thread

Message

<blockquote data-quote="keep_hope_alive" data-source="post: 8343958" data-attributes="member: 576029">cone area (sd) is 60 sq. in. per sub.&nbsp; that&#039;s 120 sq. in. for the port.&nbsp; your height of 13&quot; means the max internal port height is 11.5&quot; (3/4&quot; wood top and bottom, one layer).&nbsp; that means the port width is 10&quot; throughout.&nbsp; The subs need 7&quot; + 3&quot; for rear cooling.&nbsp; so basically, your only design is what you drew, minus the two lines in the middle.&nbsp; you have about 60&quot; of line length which means your tuning is 56Hz.you don&#039;t have near enough size for your plan to use two 10&#039;s.&nbsp; TL&#039;s are HUGE when cone area increases.this is a TL for one 8&quot; tuned to 42Hz i did recently.<img src="http://i38.photobucket.com/albums/e128/phat_funky_beats/IMG_20141101_185203_851.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />partial construction.&nbsp; had some more 45&#039;s and a double thick front baffle at the end.<img src="http://i38.photobucket.com/albums/e128/phat_funky_beats/IMG_20141102_242909_361.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://i38.photobucket.com/albums/e128/phat_funky_beats/8inTLdim.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="keep_hope_alive, post: 8343958, member: 576029"] cone area (sd) is 60 sq. in. per sub. that's 120 sq. in. for the port. your height of 13" means the max internal port height is 11.5" (3/4" wood top and bottom, one layer). that means the port width is 10" throughout. The subs need 7" + 3" for rear cooling. so basically, your only design is what you drew, minus the two lines in the middle. you have about 60" of line length which means your tuning is 56Hz. you don't have near enough size for your plan to use two 10's. TL's are HUGE when cone area increases. this is a TL for one 8" tuned to 42Hz i did recently. [IMG]http://i38.photobucket.com/albums/e128/phat_funky_beats/IMG_20141101_185203_851.jpg[/IMG] partial construction. had some more 45's and a double thick front baffle at the end. [IMG]http://i38.photobucket.com/albums/e128/phat_funky_beats/IMG_20141102_242909_361.jpg[/IMG] [IMG]http://i38.photobucket.com/albums/e128/phat_funky_beats/8inTLdim.jpg[/IMG] [/QUOTE]

Verification