Justin Posted June 28, 2009 Report Share Posted June 28, 2009 Once again I have a question. My box is around 15 cubes after displacment. And I have it tuned to around 32hz. I want to do a swapable port. max deminsions for port are........ 7"=w 18"=t 27"=d I am looking to tune one for daily and other for spl. I know what the daily one needs to be what should the spl one be tuned to. Im confused cause every site is telling me diff deminsions. Any help would be great. Also this is for 2 solo x 18s..... Quote 99 2dr Blazer Kenwood KVT-614 SounDigital SD16k 4 Fi BTL 18s 4 hertz high energy 6.5s comps 4 stock ad244 alts 6 g31s batts 8 runs 0ga Link to comment Share on other sites More sharing options...
matt402 Posted June 28, 2009 Report Share Posted June 28, 2009 tune to your peak hz. big port ftw! Quote Link to comment Share on other sites More sharing options...
Justin Posted June 28, 2009 Author Report Share Posted June 28, 2009 bump Quote 99 2dr Blazer Kenwood KVT-614 SounDigital SD16k 4 Fi BTL 18s 4 hertz high energy 6.5s comps 4 stock ad244 alts 6 g31s batts 8 runs 0ga Link to comment Share on other sites More sharing options...
xander87mp Posted July 23, 2009 Report Share Posted July 23, 2009 to 32hz you don't have a good result of spl,indeed the opposit,you have a good bass but small spl! Quote Link to comment Share on other sites More sharing options...
Sadmule Posted July 23, 2009 Report Share Posted July 23, 2009 i did a streat-beat box for a guy awhile back for 1x18", box was tuned to 35Hz for a daily driver but still put up a 148.7dB on term-lab so can still get a pretty decent spl on both. gotta watch displacement of port, when you change size of port you change net displacement for your subs because of size taken up by the port itself. for a straight SPL box your tuning is goign to be WAY higher for easyer notes, if playing a test-tone around the 43-48Hz range tuned with a peak around 50-58 should give you your max SPL on a note but if playing music (bass race etc.) you'll unloaded the woofer from lower freq. what kinda vechile is it in? do you know your car's sweet-spot for freq? Quote www.myspace.com/Sadmule Manager/Installer @ Custom Acoustics 116 E Church ST Marshalltown, IA 50158 12+yrs installing System of the Month! Come vote on the 20th! http://www.stevemeadedesigns.com/board/ind...showtopic=51696 Here is my install for the running http://www.stevemeadedesigns.com/board/ind...showtopic=50210 Link to comment Share on other sites More sharing options...
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