145dbat30hz Posted July 20, 2011 Report Share Posted July 20, 2011 i have a wall in a geo metro and im wanting to do a fourth order its two cvx 15s on audiopipe 3000 any help please Quote Link to comment Share on other sites More sharing options...
6berry Posted July 20, 2011 Report Share Posted July 20, 2011 im working on designing a fourth order for 4 10's so i can give you a little help. theyres normally a 2:1-3:1 ported to sealed ratio. the sealed side for 2 15's would probably be around 2-3.5 cubes but im not exactly sure about that. the ported side gets tuned to 45-55 hz. also, the bigger you make the ported side the more peaky your box will be. Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth Link to comment Share on other sites More sharing options...
145dbat30hz Posted July 20, 2011 Author Report Share Posted July 20, 2011 i was wanting it tuned low if i could Quote Link to comment Share on other sites More sharing options...
OrionStang Posted July 20, 2011 Report Share Posted July 20, 2011 45 is low for a 4th order. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
145dbat30hz Posted July 20, 2011 Author Report Share Posted July 20, 2011 why is that how about a 6th order i see guys playing in the 20s with a 4th order Quote Link to comment Share on other sites More sharing options...
Never Satisfied Posted July 20, 2011 Report Share Posted July 20, 2011 yes you do but, playin and tunin are two different things... Quote If you are ever satisfied, sounds like you gave up... Never Satisfied ~Team Ns~ Link to comment Share on other sites More sharing options...
6berry Posted July 20, 2011 Report Share Posted July 20, 2011 the reason they can be tuned so high and play so low is because the sealed side puts pressure on the subs so they dont bottom out at low frequencies. when you play the same notes in a ported box tuned to 3x Hz itll unload below tuning Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth Link to comment Share on other sites More sharing options...
145dbat30hz Posted July 20, 2011 Author Report Share Posted July 20, 2011 yea i know that well wat do u recomend ur a21 bravo aint u Quote Link to comment Share on other sites More sharing options...
TheyDontWantMusic Posted July 20, 2011 Report Share Posted July 20, 2011 my 4th order is tuned to 55Hz, it peaks at 36Hz, but is missing 50Hz completely, and I can't work out why! Quote Link to comment Share on other sites More sharing options...
145dbat30hz Posted July 20, 2011 Author Report Share Posted July 20, 2011 my 4th order is tuned to 55Hz, it peaks at 36Hz, but is missing 50Hz completely, and I can't work out why! i dont understand Quote Link to comment Share on other sites More sharing options...
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