im45pl Posted December 26, 2012 Report Share Posted December 26, 2012 Hi guys, if anybody with experiance with 6th orders could check this design for me that would be great (please forgive my dodgy sketchup) The box is for 4 lvl6 18" subs running off 4 5.0k. the rear chamber should be around 35ft^3 @ 25hz, the front chamber is 13ft^3 @ 50hz, this is for a ground pounder not a burp car so loud lows are what im looking for here. The "shell" of the box is alot thicker then 1 layer of 3/4mdf just using this for internal only. My main concern is port postion and sizing, from what i have read and been told port speed can make a big difference here. Any ideas or input (even its to tell me it sucks) is wanted. thanks - from australia oh i have conerted to inches for you guys aswell Quote TEAM DC AUSTRALIA My_Build_Log Link to comment Share on other sites More sharing options...
DustinBolt Posted December 27, 2012 Report Share Posted December 27, 2012 I,ve read thing where you do not want the outer chamber tuning to be exactly an octave above the inner tuning. Quote 1997 BMW 528i Fi ssd 12 6th order box Build Log- http://www.stevemeadedesigns.com/board/topic/144835-rebuild-in-the-bmw-6th-order-time-update-1113/ Link to comment Share on other sites More sharing options...
im45pl Posted December 27, 2012 Author Report Share Posted December 27, 2012 I,ve read thing where you do not want the outer chamber tuning to be exactly an octave above the inner tuning. i was actually told the exact opposite, as i said ive had no experience with these enclosures before so im just going off other info Quote TEAM DC AUSTRALIA My_Build_Log Link to comment Share on other sites More sharing options...
revoracing247 Posted December 27, 2012 Report Share Posted December 27, 2012 ever tried throwing it in win isd? just an idea Quote I think you have a bit of truck stuck in your mud bro ~Ford Ranger, ext cabKenwood DDX4701/0ga stinger wiring for big 31/0ga ofc flextech wiring 3 kinetik 800's AQ2200 @1ohm Sundown Audio X15 in a 27Hz tuned ported box LE BUILD LOG!!! Link to comment Share on other sites More sharing options...
im45pl Posted December 27, 2012 Author Report Share Posted December 27, 2012 I have but it changes the port length etc and peaks of the chart at 25 and 50hz. but i have never really trusted those programs for a bandpass Quote TEAM DC AUSTRALIA My_Build_Log Link to comment Share on other sites More sharing options...
corona_jeff Posted December 27, 2012 Report Share Posted December 27, 2012 I think u got the ratio backwards. All the ones I have seen the rear cha pm er was smaller then the front Quote Link to comment Share on other sites More sharing options...
im45pl Posted December 28, 2012 Author Report Share Posted December 28, 2012 I think u got the ratio backwards. All the ones I have seen the rear cha pm er was smaller then the front it appears that i have so please disregard my design lol , working on a new one thanks! Quote TEAM DC AUSTRALIA My_Build_Log Link to comment Share on other sites More sharing options...
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