Twostrokeking Posted October 27, 2011 Report Share Posted October 27, 2011 Okay for example (this isn't what im getting but its the first thing i came across) Anyways say i wanted to build a ported box for this sub. the mtx thunder 8000 here are some specs, freq response- 32-200 hrtz mounting depth is 7.68" Volume Displacement 51.26 cu in Vented Enclosure Net Volume 2.00 cu ft RMS Power (Watts) 500 Okay.. lets say i wanted this under the back seat of my truck.. (i know its to small of a space but lets just say) How do i even begin?! most subs are ported to what? 33 hrtz? Okay i want this sub tuned to 33 hrtz. How do i begin to even design it? how do i make that box fit in a certain area? its 2.00 cu ft. but i have no idea what sizes to cut the wood? port size? ahhh this is confusing. thanks.. sorry im kinda dumb at this whole ported thing Quote My Truck BuildSpending money on things I don't need, to impress others I don't know.At the end of the day for me its about the love of customizing anything and everything to limits or even past reasonable.-SkyHighCarAudio Link to comment Share on other sites More sharing options...
Hitman813 Posted October 27, 2011 Report Share Posted October 27, 2011 what r the max dimensions u have to work with Quote Link to comment Share on other sites More sharing options...
TheBetterMethod Posted October 27, 2011 Report Share Posted October 27, 2011 (edited) ^That Determine the max size you can make the box, then figure how much you can remove from that max. to get the 2cubes after displacement. also factor in the standard 12-16square in. of port per cubic foot. You have absolutes: Sub displacement Box volume after displacement Tuning frequency Port area Size limitation Once you know your size limitations the rest is easy. Edited October 27, 2011 by TheBetterMethod Quote 2005 Subaru Outback Wagon Pioneer 9400BH Fi Q 15, SAZ1500dV3 The first build>>> http://www.stevemead...-outback-build/ 140.9 @ 36hz Sealed on dash! REBUILT!!! 2 Fi Q 15s, 2 SAZ1500dv3 146.9 @ 39hz dBDRA certified Link to comment Share on other sites More sharing options...
Twostrokeking Posted October 27, 2011 Author Report Share Posted October 27, 2011 what r the max dimensions u have to work with im making this up, its freezing ass cold outside and im lazy.. haha i was just wondering how to do this... here is my guess.. i could go 3 feet long, 1 1/2 feet deep, 1 foot tall in the front, and 8 inches in the back? (the seat tapers back?) and then there is a transmission hump. hope that helped Quote My Truck BuildSpending money on things I don't need, to impress others I don't know.At the end of the day for me its about the love of customizing anything and everything to limits or even past reasonable.-SkyHighCarAudio Link to comment Share on other sites More sharing options...
Twostrokeking Posted October 27, 2011 Author Report Share Posted October 27, 2011 ^That Determine the max size you can make the box, then figure how much you can remove from that max. to get the 2cubes after displacement. also factor in the standard 12-16square in. of port per cubic foot. With the measurements i gave could u give me an example/ i know its asking alot.. sorry man Quote My Truck BuildSpending money on things I don't need, to impress others I don't know.At the end of the day for me its about the love of customizing anything and everything to limits or even past reasonable.-SkyHighCarAudio Link to comment Share on other sites More sharing options...
Hitman813 Posted October 27, 2011 Report Share Posted October 27, 2011 what r the max dimensions u have to work with im making this up, its freezing ass cold outside and im lazy.. haha i was just wondering how to do this... here is my guess.. i could go 3 feet long, 1 1/2 feet deep, 1 foot tall in the front, and 8 inches in the back? (the seat tapers back?) and then there is a transmission hump. hope that helped alrite what kinda truck do u drive cause ive yet to see a truck thats got a tranny hump under the back seat so ima just take that factor out for u Quote Link to comment Share on other sites More sharing options...
TheBetterMethod Posted October 27, 2011 Report Share Posted October 27, 2011 (edited) Well with those dimension you have right around 2.8 cubic feet for the max volume of the box before displacement and not factoring in the hump in the floor. So that makes it hard to work with. If you use one 4 inch aero port and tune to 33hz and the final volume after displacement is 2 cubes, you have an extra .6 cubes to play with. That's using the dimension and displacement you posted. I think the sub displacement you posted may be wrong, it seems too small. Edited October 27, 2011 by TheBetterMethod Quote 2005 Subaru Outback Wagon Pioneer 9400BH Fi Q 15, SAZ1500dV3 The first build>>> http://www.stevemead...-outback-build/ 140.9 @ 36hz Sealed on dash! REBUILT!!! 2 Fi Q 15s, 2 SAZ1500dv3 146.9 @ 39hz dBDRA certified Link to comment Share on other sites More sharing options...
Twostrokeking Posted October 27, 2011 Author Report Share Posted October 27, 2011 Well with those dimension you have right around 2.5 cubic feet for the max volume of the box before displacement and not factoring in the hump in the floor. So that makes it hard to work with. Sorry I said it wrong.. I could go like 4 feet long? How ever wide a regular truck is I could go that Quote My Truck BuildSpending money on things I don't need, to impress others I don't know.At the end of the day for me its about the love of customizing anything and everything to limits or even past reasonable.-SkyHighCarAudio Link to comment Share on other sites More sharing options...
Twostrokeking Posted October 27, 2011 Author Report Share Posted October 27, 2011 what r the max dimensions u have to work with im making this up, its freezing ass cold outside and im lazy.. haha i was just wondering how to do this... here is my guess.. i could go 3 feet long, 1 1/2 feet deep, 1 foot tall in the front, and 8 inches in the back? (the seat tapers back?) and then there is a transmission hump. hope that helped alrite what kinda truck do u drive cause ive yet to see a truck thats got a tranny hump under the back seat so ima just take that factor out for u I drive a 95 chevy k1500 and I could go like 4 or 5 feet long.. How ever wide a regular truck is haha Quote My Truck BuildSpending money on things I don't need, to impress others I don't know.At the end of the day for me its about the love of customizing anything and everything to limits or even past reasonable.-SkyHighCarAudio Link to comment Share on other sites More sharing options...
fox_racin4 Posted October 27, 2011 Report Share Posted October 27, 2011 If its the same interior as mine its about 55w. The hump hes talking about goes almost the full width of the cab for mounting the seats, again, if its the same as mine Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
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