Notoriousj76 Posted October 16, 2011 Report Share Posted October 16, 2011 So, I'm building on a budget, which is rather small. I'll be doing a lot of saving but what are your guys' opionions on 1 18inch Fi BTL fully loaded on a SAZ 3000? I'm in a 91 astro van and It doesnt like to let me hit the lows. I plan on building an 8 cubic ft net enclosure tuned at 30 hz. Regardless of the vehicle, do you think it'll shake your guys out? As long as it's loud and low I'm not that concerned about spl, I just want it to sound better inside the cabin. My main debate is 1 really good 18 or 2 average 15s..... either way I'm only runnin the sundown amp. Saving for a 200 amp alt and a couple of big batterys currently, no way I'm hookin anything up without proper electical. Throw some ideas at me, anything you think will make it louder. Quote Link to comment Share on other sites More sharing options...
kam311 Posted October 16, 2011 Report Share Posted October 16, 2011 The equipment sounds good, but the box doesn't. Why 8ft^3? that like double the size your sub needs. I'm going to do a build with 2 18's soon and although the parameters of the subs I will he using have not yet been realeased, I'm almost sure my box will be 8ft^3-10ft^3 and that's two 18's Quote so far... HU- pioneer DEH-P59001B Amp- crescendo BC2000D Wire- 1/0 awg welding lead Electric- Big 3 ^same wire Subs- 2 Obsidian Audio 12 d4's Box 4ft^3 ported at 33hz. designed by Ram-Designs Link to comment Share on other sites More sharing options...
Notoriousj76 Posted October 18, 2011 Author Report Share Posted October 18, 2011 this whole box building thing really gets me Does the size of the box affect the tuning? I was always taught that, generally speaking, the bigger the box, the lower the freq extension without losing db. Doesnt a larger box make for a flatter freq curve too? This is why I like to ask Quote Link to comment Share on other sites More sharing options...
big dee Posted October 18, 2011 Report Share Posted October 18, 2011 You will probly get all lows with that box and nearly no mid to high bass. I would go for no more than 6 cubes. Quote Link to comment Share on other sites More sharing options...
big dee Posted October 18, 2011 Report Share Posted October 18, 2011 And the sub will not last long in a box that size on 3k. Quote Link to comment Share on other sites More sharing options...
big dee Posted October 18, 2011 Report Share Posted October 18, 2011 The length of the port is what mainly effects tuning. Quote Link to comment Share on other sites More sharing options...
armykyle1 Posted October 18, 2011 Report Share Posted October 18, 2011 8 cubes is wayyyy tooo much lol like said previous no more than 6 cubes, usually you only go bigger on box size with lower power situations, not 3k. Why not two 15s? two lms-r 15s would get nasty low and 3k would be perfect for a pair Quote TEAM XS POWERTEAM HEAVY HERTZMy build- http://www.stevemeadedesigns.com/board/topic/194454-e46-bmw-build-pos/#entry2914134youtube- http://www.youtube.com/user/armykyle1big build starting Link to comment Share on other sites More sharing options...
Notoriousj76 Posted October 20, 2011 Author Report Share Posted October 20, 2011 alrighty then.... I have 2 15s sitting around. they are nightshades with re sx motors and one blown coil each.... I have no idea how that happened but it's my best guess as to what happened before I got them. So new plan. Keep these 15s because I know they are rather loud. 6 cubes net at 32 hz or 37 hz? I really really want super low bass. I'll start building after I get a couple opinions. All my other boxes for myself have been epic fails in design and I'd rather not mess up again :/ Quote Link to comment Share on other sites More sharing options...
dtleonard26 Posted October 20, 2011 Report Share Posted October 20, 2011 If you want stupid low go towards 28hz but 32hz will get low too Quote Bagged 83 C10 89 K1500 Link to comment Share on other sites More sharing options...
Notoriousj76 Posted October 20, 2011 Author Report Share Posted October 20, 2011 I had an HCCA 15 in roughly 5 cubic feet tuned to 28 and it was really low but no so much loud... barely peaking 130 but about to shake my van apart. and that was only on a 2000 watt brutus. Also, the mid bass sucked big balls. It had less output at 50 hz than my single type R 12 in a tline. Quote Link to comment Share on other sites More sharing options...
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