timc31610 Posted April 15, 2014 Report Share Posted April 15, 2014 Hey Guys my girl just bought a 2005 Chevy Equinox and of course she wants some bump. I have two Sundown SA-10's D4 along with an Alpine MRX-M100 (1000w rms @ 2 ohms, 600w rms @ 4ohms and 500w @ 1ohm???). I know there is no way to wire the subs to get the full potential out of the amp so i have a SQ 1200 on the way but it will have to be repaired before it will be useable. My useable dimensions ar 34"W x 17"D x 17H. This being my girl's daily ride I would like to build a 4th order so that the subs are protected but im not sure if I have enough room. If needed I could go deeper, possibly by another 17" if that would help. From my calcs for those two subs I would need a shared sealed chamber at 1.5cf and a ported at 3cf with about 40sq" of port in the 45-50hz range. Am I close or just so far off it isnt funny? Any help would be greatly appreciated! My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
Joe X Posted April 16, 2014 Report Share Posted April 16, 2014 You barely meet the gross volume for both chambers but nothing more of what's needed: baffle, drivers and port displacements. Link to comment Share on other sites More sharing options...
timc31610 Posted April 16, 2014 Author Report Share Posted April 16, 2014 I kind of figured that. I know that a standard ported box would probably perform the best. My biggest concern is her putting groceries in the back then bumping the system and damaging a speaker. I may have to consider doing a single sub in a 4th, is that a possibility? Thank you for your input Joe, it is much appreciated! My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
timc31610 Posted April 16, 2014 Author Report Share Posted April 16, 2014 Just re-measured, 34W x 12H x 20D is the max amount of space she will give up. Played with Torress a bit and this is what I came up with Does this look close? I would like to hit the lows fairly well but want to stay away from peaky. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
BassDoctor Posted April 16, 2014 Report Share Posted April 16, 2014 See if you can do two SA-10s in 1.2cubes sealed 3.6cubes ported tuned to ~49hz with 64sqin of port. 04 Honda Accord LX Sedan Kenwood Excelon X998 XS Power D3400 XS Power D1200 Singer 275A alternator with factory bypass 64 sqft SecondSkin Damplifier Build to be decided Link to comment Share on other sites More sharing options...
timc31610 Posted April 16, 2014 Author Report Share Posted April 16, 2014 I wish I could! With my max dims i'm barely at 3.5 gross. I have settled on straight ported but with a twist to protect the subs. How do you calculate a center port? Is it essentially like doing two seperate ported boxes with the port sides together and just remove the center piece? My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
Motorboat KER Posted April 16, 2014 Report Share Posted April 16, 2014 Put a protective grill on the cone of the speakers? Link to comment Share on other sites More sharing options...
timc31610 Posted April 16, 2014 Author Report Share Posted April 16, 2014 Thats a thought, but I want something a little more unique. As soon as I get started on it I will post pics and such. Need to get the box figured out first though. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
LoudBimmer Posted April 16, 2014 Report Share Posted April 16, 2014 2.5 CF tuned to 32hz with ~40sq of port. Go ported, not sealed. Link to comment Share on other sites More sharing options...
timc31610 Posted April 16, 2014 Author Report Share Posted April 16, 2014 Definitely goin ported, see torress shot above. Im just trying to figure out how to calculate a center port as opposed to port on one end of the box or the other.I've seen Joe x post up several boxes with center ports but I have no clue how to tune one. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly Link to comment Share on other sites More sharing options...
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