bass juggernaut Posted June 21, 2013 Report Share Posted June 21, 2013 so i will be building a new box and i know enough about box building to get good numbers on the mic and dig on the lows BUT box rise is new to me and when i tested my last box it was rising really high @ all frequencies 30-40-50-60. Soooo i was wondering if there is something particular that contributes to really high box rise or if its just something that i have to live with. im sure its a "get some lose some" situation so ANY input would be greatly appreciated. off topic but why dose the BL of a sub-woofer lower with impedance??? Link to comment Share on other sites More sharing options...
Nate Futuristic Posted June 22, 2013 Report Share Posted June 22, 2013 daily... not so much burp yes but its alot of testing and tuning personally bigger boxs with smaller port gave me less rise.. but their are alot of variables not sure on the BL thing but i assume its got to do with Resistance with the motor on a 2 ohm is higher so it needs more force.. on a 1 ohm coil its not as resistant so it doesnt require that much force? i dunno talking out of my ass prolly lol down rpping vanderbilt. 30 miles from victoria. i own the 3rd loudest setup here out of 3. but i did put together all 3 setups ^^ Cant wait to swalllow Ghost's babies Link to comment Share on other sites More sharing options...
bass juggernaut Posted June 22, 2013 Author Report Share Posted June 22, 2013 thanx, my box will be daily (no burps) ground pounder style. my last box had 14.5 sqin per foot of port so maybe this time i will try 12. my new set up is 2x AB HD 18's in a Tahoe off a BC3500 Link to comment Share on other sites More sharing options...
bkolfo4 Posted June 22, 2013 Report Share Posted June 22, 2013 [smarta$$_comment]I just cut 3 of my fingers off to celebrate this thread and all of the good information that will end up being posted in it.[/smartass_comment] Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
Dan2427 Posted June 22, 2013 Report Share Posted June 22, 2013 [smarta$$_comment]I just cut 3 of my fingers off to celebrate this thread and all of the good information that will end up being posted in it.[/smartass_comment] Lol!! And op there isn't really a way to stop it, I wouldn't worry about it with music. If you want a way to help it I would go with RF constant power amp(s) but I've never worried about it enough to switch amps. The benefit over the cost doesn't seem worth it to me, maybe if I were chasing numbers.. But then again I would've wired to .35 instead of 1.4! Hopefully he don't cut off another finger for this reply a lil drunk but what I said makes sense in my head. 2003 GMC Yukon Denali Alpine CDA 117 Redoing Mids/Highs 4 Runs of 1/0 Knukonceptz 2+, 2- 4 Deka 9A31's in back (Stock underhood) 250 amp Alt. AQ20K 2 18" Crossfire XS V.2's 12 cubes 33hz 149sq inches of port! Link to comment Share on other sites More sharing options...
bkolfo4 Posted June 22, 2013 Report Share Posted June 22, 2013 Set that sub on the floor and measure the impedance over several frequencies between 25 and 50 Hz. Then we can talk about ways to get rid of "floor rise" Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
bass juggernaut Posted June 22, 2013 Author Report Share Posted June 22, 2013 fuckin TROLL^^^ Link to comment Share on other sites More sharing options...
Dan2427 Posted June 22, 2013 Report Share Posted June 22, 2013 No he's a very knowledgeable member here. 2003 GMC Yukon Denali Alpine CDA 117 Redoing Mids/Highs 4 Runs of 1/0 Knukonceptz 2+, 2- 4 Deka 9A31's in back (Stock underhood) 250 amp Alt. AQ20K 2 18" Crossfire XS V.2's 12 cubes 33hz 149sq inches of port! Link to comment Share on other sites More sharing options...
TechMasterJoe Posted June 22, 2013 Report Share Posted June 22, 2013 yep box rise and fall can be fixed. take the springs off your ride lol list of past Records The Beasty (94 explorer) 152.3db best it did before it was flipped on the freeway the power 4 ORG Fi BTL's 15's 4 Stetsom 6K5E - 2 Ohm amps 8 xs power D2400's 3 mechman alts The Toy Box (08 Scion XB) all new project started 9/11/13 c-piller wall 2 maybe 3 15's very low budget fighting cancer right now Link to comment Share on other sites More sharing options...
CleanSierra Posted June 22, 2013 Report Share Posted June 22, 2013 yep box rise and fall can be fixed. take the springs off your ride lol Great first post, PURRRRRRE class.... Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
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