Bean Posted June 6, 2012 Author Report Share Posted June 6, 2012 I do compete with MECA and thats why I was trying to figure out the best way to "defeat" box rise. Thanks bkolfo4 for all of your help. I am in the processing of reconing to a D1 and plan onadding more amps in the future. The first thing I planned to do was build a new box but thanks for saving me some money and telling me that isnt the best option. I will let you guys know more once I get my sub reconed. Quote Link to comment Share on other sites More sharing options...
fecupe2001 Posted June 6, 2012 Report Share Posted June 6, 2012 Some AWESOME inputs from a couple of loud guys with great knowledge, i do agree with them, i stopped worrying that much about impedance rise long time ago, i prefer efficiency just like skittles, bigger boxes don`t need that much power , my current box has something like x3 impedance rise and still does a 147 @ 41 hz using a 2K amplifier and 2 12`s Also like BK said, if you are tuned to 40 hz and burping @ 45 hz you might be tuned to high for comps, but that depends on way too many factors, i can tell you this, NO MATTER WHAT THE BOX SIZE IS, my explorer gets louder tuned below 39 hz Quote I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
Loud Avalanche Posted June 6, 2012 Report Share Posted June 6, 2012 I run a 26 cft box and I only have 2 times rise.You can also run larger speaker wire which can help.I currently run 4 guage to my subs and i have noticed a big difference .I have had big box rise in small enclosures and large enclosure.There are alot of factors that can effect box rise. Quote Link to comment Share on other sites More sharing options...
EdgarG0721 Posted June 6, 2012 Report Share Posted June 6, 2012 ^What subs to u have in 26 cubs? Quote Link to comment Share on other sites More sharing options...
bkolfo4 Posted June 6, 2012 Report Share Posted June 6, 2012 ^What subs to u have in 26 cubs? Same ones that need 4 ga speaker wire to bring down the impedance rise Quote 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...
skittlesRgood Posted June 6, 2012 Report Share Posted June 6, 2012 I run a 26 cft box and I only have 2 times rise.You can also run larger speaker wire which can help.I currently run 4 guage to my subs and i have noticed a big difference .I have had big box rise in small enclosures and large enclosure.There are alot of factors that can effect box rise. proof of difference? Quote If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
Loud Avalanche Posted June 6, 2012 Report Share Posted June 6, 2012 I'm currently running 4 9515's on 2 AB 1100.1 amps .clamping over 16k total watts. Quote Link to comment Share on other sites More sharing options...
bkolfo4 Posted June 6, 2012 Report Share Posted June 6, 2012 Hmmm. What voice coils, and what load on each amp? If you are running 4 ga from the amp and jumping to multiple coils/subs, it could make a difference. That could be up to 90 amps through the speaker wire. If you have each coil run back to the amp, no way. Even with 1 ohm coils all in parallel. 2000 watts at 1 ohm is only 45 amps. 8 ga would be more than enough, unless the amps are 20' from the subs. Quote 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...
MrSkippyJ Posted June 6, 2012 Report Share Posted June 6, 2012 i still want to know how 4 gauge wire effects impedance rise. Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
bkolfo4 Posted June 7, 2012 Report Share Posted June 7, 2012 It doesn't really apply to the original question, but with enough current, power is lost if the wire is undersized. Wire has resistance, current flows and voltage drops. Voltage drop and current flow is power lost as heat in the wire. Heat increases, resistance increases, more power is lost. 4 ga would be overkill in most cases, but I can see wiring scenarios where 8000 watts would benefit. Quote 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...
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.