One Way Posted April 29, 2012 Report Share Posted April 29, 2012 (edited) I recently bought some type Rs from a member on here. I always wanted to try a 4th order and this seemed like the perfect time. Im having a little trouble with the frequency bandwidth for the bandpass. I need more help on designing one and need to know what i should shoot for when i plot the curves on the graph. I would like to have a flat response, but typically the db gain is lower, so as flat as possible. would like to play lows pretty good and still be loud. i know Winisd does not take cabin gain into account. car its goin into is a 01 eclipse two 10" type Rs YELLOW curve is 1:1 ratio 44 hertz. 1.25/1.25 cubes AQUA curve is ~ 2:1 ratio 42 hertz. 2/1.25 cubes PINK curve is ~ 2:1 ratio 44 hertz. .78/1.73 cubes (this is the flatest response i could get it but yields small output) any help please enlighten me as i dont know anything... Edited April 29, 2012 by One Way Quote T-line build- http://www.stevemead...e-t-line-build/ Link to comment Share on other sites More sharing options...
One Way Posted April 30, 2012 Author Report Share Posted April 30, 2012 No one? Quote T-line build- http://www.stevemead...e-t-line-build/ Link to comment Share on other sites More sharing options...
Guest Posted April 30, 2012 Report Share Posted April 30, 2012 winisd doesn't take into account your car. it just puts a microphone in front of the box while its outside in your driveway or something. Quote Link to comment Share on other sites More sharing options...
One Way Posted April 30, 2012 Author Report Share Posted April 30, 2012 I understand that but I'm just using winisd as a guide, I kno it will act different in the car. Quote T-line build- http://www.stevemead...e-t-line-build/ Link to comment Share on other sites More sharing options...
profundus-sanus Posted April 30, 2012 Report Share Posted April 30, 2012 you can attempt to simulate cabin gain by inserting the linkiwitz transform. i really only use bassbox pro for bandpasses though Quote Link to comment Share on other sites More sharing options...
Ray Posted April 30, 2012 Report Share Posted April 30, 2012 Id start with 1.75 sealed total And 3.5 after ported 12-13sqin of vent. Tune around 38ish. See what that looks like Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
One Way Posted April 30, 2012 Author Report Share Posted April 30, 2012 Dang that big? I was hoping to get away with a smaller box because the eclipses don't have that much room. Is there a certain point you start with, when designing a 4th order?? Quote T-line build- http://www.stevemead...e-t-line-build/ Link to comment Share on other sites More sharing options...
Ray Posted April 30, 2012 Report Share Posted April 30, 2012 Then just do a ported box. Bandpass isnt for everyone or every woofer Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
One Way Posted April 30, 2012 Author Report Share Posted April 30, 2012 Was hoping it wouldn't come to building a ported. Main reason why I bought the 10s to try out a 4th, but oh well I guess. So what would be an ideal ported box for a low musical box? **Side note ray I asked a question on your help thread. Quote T-line build- http://www.stevemead...e-t-line-build/ Link to comment Share on other sites More sharing options...
Ray Posted April 30, 2012 Report Share Posted April 30, 2012 Well that car gets loud anyway. If you dont do a 46-47 id rebuild. Id i had that gear, 3cuft after with 13 sqin per tuned to 34 Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
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