Nasty1 Posted May 19, 2012 Report Posted May 19, 2012 I'm going to gut my box and turn it in to a 4th order wall for a xl18 m1. Im thinking 3 cuft. sealed and 15cuft ported @ 43 hz off a sundown 3500. The reason I'm doing this is for a wider musical bandwith and still play stupid low. What you guys think ? Any advice would be appreciated . Quote 2 DC Audio lvl 4 xl 18s D .7s walled off @ 30 hz 19 cubes net 245sq in of port Sundown 3500 @ .7 Ohm Sundown 100.4 Rockford Fosgat Power Series 5.25 Dash 6.5 Kicks 8 Coaxils Doors 250 mechicman alt 1 red top under the hood 2 yellow tops in back big 3 with 1/0 knukonceptz wire 3 runs of +/- 1/0 knukonceptz wire IT LBS
xterraboy03 Posted May 19, 2012 Report Posted May 19, 2012 15 cubic feet ported maybe a little large... 1 Quote 03' NISSAN XTERRA (1) AQ3500d (1) AQ4x90 (1) Audio Control Line Driver (4) DC LVL 4 15's Cresendo Mids and Highs 100' of 0/guage Big Three Mechman 270a Charging @ 16.5v (6) XS D1400's Highest Termlab Score 149.9 at the kick & 166.1 in the Port/ on stock electrical and 1 DC XL M1 Updated JUNE 2012*****MY BUILD LOG USACI REGION 6 POINTS LEADER 2011 USACI KANSAS RECORD HOLDER 2011 Team DC http://www.dcsoundlab.com/
Nasty1 Posted May 19, 2012 Author Report Posted May 19, 2012 I'v been reading the bigger the ratio the better ??? Quote 2 DC Audio lvl 4 xl 18s D .7s walled off @ 30 hz 19 cubes net 245sq in of port Sundown 3500 @ .7 Ohm Sundown 100.4 Rockford Fosgat Power Series 5.25 Dash 6.5 Kicks 8 Coaxils Doors 250 mechicman alt 1 red top under the hood 2 yellow tops in back big 3 with 1/0 knukonceptz wire 3 runs of +/- 1/0 knukonceptz wire IT LBS
sprkn_ranger Posted May 19, 2012 Report Posted May 19, 2012 Have you seen this thread? http://www.stevemeadedesigns.com/board/topic/126478-basics-of-a-4th-order-bandpass-enclosure/ Might get you pointed in the right direction. Quote Check out my build log! 4 Havocs in a blowthrough http://www.stevemeadedesigns.com/board/topic/187506-sprkn-rangers-blowthrough-build/
Nasty1 Posted May 19, 2012 Author Report Posted May 19, 2012 No sir ill check it out Thankz Quote 2 DC Audio lvl 4 xl 18s D .7s walled off @ 30 hz 19 cubes net 245sq in of port Sundown 3500 @ .7 Ohm Sundown 100.4 Rockford Fosgat Power Series 5.25 Dash 6.5 Kicks 8 Coaxils Doors 250 mechicman alt 1 red top under the hood 2 yellow tops in back big 3 with 1/0 knukonceptz wire 3 runs of +/- 1/0 knukonceptz wire IT LBS
xterraboy03 Posted May 19, 2012 Report Posted May 19, 2012 My 4th order I buil was 2.5 sealed and about 4.8 ported, I would definitely go with 2:1 ratio. I think it would best. So If u wanna go 3 sealed run 6 ported! Do it you will like it if you build it they will come! Quote 03' NISSAN XTERRA (1) AQ3500d (1) AQ4x90 (1) Audio Control Line Driver (4) DC LVL 4 15's Cresendo Mids and Highs 100' of 0/guage Big Three Mechman 270a Charging @ 16.5v (6) XS D1400's Highest Termlab Score 149.9 at the kick & 166.1 in the Port/ on stock electrical and 1 DC XL M1 Updated JUNE 2012*****MY BUILD LOG USACI REGION 6 POINTS LEADER 2011 USACI KANSAS RECORD HOLDER 2011 Team DC http://www.dcsoundlab.com/
sprkn_ranger Posted May 19, 2012 Report Posted May 19, 2012 No sir ill check it out Thankz No prob Quote Check out my build log! 4 Havocs in a blowthrough http://www.stevemeadedesigns.com/board/topic/187506-sprkn-rangers-blowthrough-build/
Nasty1 Posted May 19, 2012 Author Report Posted May 19, 2012 Ok i got one for ya. Lets say i do a 2:1 ratio 3cuft sealed and 6 ported . With the ported section do i do 6 cuft total or 6cuft + port ??? Quote 2 DC Audio lvl 4 xl 18s D .7s walled off @ 30 hz 19 cubes net 245sq in of port Sundown 3500 @ .7 Ohm Sundown 100.4 Rockford Fosgat Power Series 5.25 Dash 6.5 Kicks 8 Coaxils Doors 250 mechicman alt 1 red top under the hood 2 yellow tops in back big 3 with 1/0 knukonceptz wire 3 runs of +/- 1/0 knukonceptz wire IT LBS
sprkn_ranger Posted May 19, 2012 Report Posted May 19, 2012 Ok i got one for ya. Lets say i do a 2:1 ratio 3cuft sealed and 6 ported . With the ported section do i do 6 cuft total or 6cuft + port ??? I believe it is after displacements...someone will correct me if I'm wrong. Quote Check out my build log! 4 Havocs in a blowthrough http://www.stevemeadedesigns.com/board/topic/187506-sprkn-rangers-blowthrough-build/
xterraboy03 Posted May 19, 2012 Report Posted May 19, 2012 After displacement! Quote 03' NISSAN XTERRA (1) AQ3500d (1) AQ4x90 (1) Audio Control Line Driver (4) DC LVL 4 15's Cresendo Mids and Highs 100' of 0/guage Big Three Mechman 270a Charging @ 16.5v (6) XS D1400's Highest Termlab Score 149.9 at the kick & 166.1 in the Port/ on stock electrical and 1 DC XL M1 Updated JUNE 2012*****MY BUILD LOG USACI REGION 6 POINTS LEADER 2011 USACI KANSAS RECORD HOLDER 2011 Team DC http://www.dcsoundlab.com/
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.