WalledSonic Posted June 15, 2017 Author Report Share Posted June 15, 2017 Driving home from Slam, I had a 16 hour drive to think about why I'm not very loud (lol but seriously). I had only taken a few data points with the IM-SG, but figured it would be good to plot the entire impedance curve of the sub-box system so I could fully understand how and why the impedance varies like it does. The dark green line is the impedance rise of the system wired to 0.8ohm. I took values every 1/2 hertz from 15-65Hz, which took a painfully long time with the sensitive dial of the IM-SG. The faint green line is the power output the amp should make when subjected to the impedance curve of the system. The takeaway here is that I need a bigger amp! The bright red line is the system wired to 0.2ohm. I'm going to make a different thread to discuss this (and possibly other) impedance curves. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
the_garynator Posted June 15, 2017 Report Share Posted June 15, 2017 44 minutes ago, WalledSonic said: Thanks man, it was good to meet and see your rig. Funny thing, I was more excited to see everyone else's rigs and to get demos than to show off my own, so I was wandering around most of the time. Trying to upload pics right now, I'll be posting them to everyone's threads once I get them loaded. I'll have to get one next time! And you'll have to get one in my truck again, the added power made things violent big time! Current Build: Project Flexington: 157.6db @ 37hz Parallel 6th order walk through, DC Neo Elite 18s, 4 DC 5.0ks, JY Lithium, 12 banks of XS Caps Old Builds:150db and HAIRTRICKs from 2x 12" Power Acoustik Mofos (6th order blow through) ;<p>Roadmaster Wagon Build - DC LVL 6 M3, Kicker Warhorse ; Godzilla swapped 240sx ; 6th Order Bandpass Alpine Type R 12 ; Fully loaded DC Level 5 18" 240sx Link to comment Share on other sites More sharing options...
WalledSonic Posted June 15, 2017 Author Report Share Posted June 15, 2017 I also saw a BAD freeway accident on the way home, and realized (again) that when I removed my rear airbags, that disengaged the entire airbag system. So I measured the resistance of each airbag (2.2ohm each) and bought (5) 2.2ohm resistors on ebay for $1.67. Some careful custom bends later: And BAM, no more airbag light! Since the airbag system is a 2 wire daisy chained system, it only makes sense to complete the original circuit with the right resistance so that the startup checks can be performed by the BCM. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
the_garynator Posted June 15, 2017 Report Share Posted June 15, 2017 3 minutes ago, WalledSonic said: Driving home from Slam, I had a 16 hour drive to think about why I'm not very loud (lol but seriously). I had only taken a few data points with the IM-SG, but figured it would be good to plot the entire impedance curve of the sub-box system so I could fully understand how and why the impedance varies like it does. The dark green line is the impedance rise of the system wired to 0.8ohm. I took values every 1/2 hertz from 15-65Hz, which took a painfully long time with the sensitive dial of the IM-SG. The faint green line is the power output the amp should make when subjected to the impedance curve of the system. The takeaway here is that I need a bigger amp! The bright red line is the system wired to 0.2ohm. I'm going to make a different thread to discuss this (and possibly other) impedance curves. This is the kinda shit I like to see! I've graphed impedance curves in old systems, it's a tedious process but helps a ton in matching coils to your amp. I have to do this in my truck now, just haven't had time yet lol Current Build: Project Flexington: 157.6db @ 37hz Parallel 6th order walk through, DC Neo Elite 18s, 4 DC 5.0ks, JY Lithium, 12 banks of XS Caps Old Builds:150db and HAIRTRICKs from 2x 12" Power Acoustik Mofos (6th order blow through) ;<p>Roadmaster Wagon Build - DC LVL 6 M3, Kicker Warhorse ; Godzilla swapped 240sx ; 6th Order Bandpass Alpine Type R 12 ; Fully loaded DC Level 5 18" 240sx Link to comment Share on other sites More sharing options...
BP1Fanatic Posted June 15, 2017 Report Share Posted June 15, 2017 Where would the airbag light be on the screen? 2000 Toyota Solara SEV6, 200 amp alternator, Jensen VX7020, Hifonics American Warrior Taurus X, Hifonics American Warrior Centurion X, JBL Club 6500C, Power Acoustik XP2K-4102, Coustic Power Logic HT-612 in a BP4. Link to comment Share on other sites More sharing options...
WalledSonic Posted June 15, 2017 Author Report Share Posted June 15, 2017 47 minutes ago, BP1Fanatic said: Where would the airbag light be on the screen? Exactly, Mr. State Inspector, there's no airbag problem at all... Haha. It was the 5th dot on the bottom. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
BP1Fanatic Posted June 18, 2017 Report Share Posted June 18, 2017 Lol! 2000 Toyota Solara SEV6, 200 amp alternator, Jensen VX7020, Hifonics American Warrior Taurus X, Hifonics American Warrior Centurion X, JBL Club 6500C, Power Acoustik XP2K-4102, Coustic Power Logic HT-612 in a BP4. Link to comment Share on other sites More sharing options...
WalledSonic Posted June 23, 2017 Author Report Share Posted June 23, 2017 Damn, really wish I wouldve built a driver's side port. That way I could block of the 4th sub hole and play around with just 3 subs and more box volume. I dont think I would get good response by removing a sub from a center slot port design like mine. Life lessons. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
bsneon98 Posted September 7, 2017 Report Share Posted September 7, 2017 man id love to catch up on this but photofuckit is killing the internet with loss of pics lately nvm im an idiot lmao Build Log: http://www.stevemeadedesigns.com/board/topic/152954-1998-plymouth-neon-updates/ Link to comment Share on other sites More sharing options...
WalledSonic Posted September 7, 2017 Author Report Share Posted September 7, 2017 Hahaha thanks man. New build log for anyone that ended up here: https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
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