haskos1989 Posted March 6, 2018 Report Share Posted March 6, 2018 i have 3 amps and two subs and one for speakers' can i install capacitors for two subs but not use capacitor for the speakers amp is this okay to do ? Link to comment Share on other sites More sharing options...
WalledSonic Posted March 6, 2018 Report Share Posted March 6, 2018 2 farad capacitors are not worth the money. Get more batteries or an alternator. 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...
PC Principal Posted March 6, 2018 Report Share Posted March 6, 2018 How much power are you running? While I agree with WalledSonic, some of us cannot afford more batteries or an alternator upgrade, so a capacitor is the next best thing. If the amp that is running your mids is not very big, then I would say that it is ok to run without the capacitor hooked up. It all depends on the current draw of the amp, output of your alternator, battery quality, and wiring (big 3). 2007 Toyota FJ Cruiser RF Power T1000 BDCP RF Punch 400-4 2 P2D4 12's Link to comment Share on other sites More sharing options...
AlpineNut Posted March 6, 2018 Report Share Posted March 6, 2018 1 hour ago, WalledSonic said: 2 farad capacitors are not worth the money. Get more batteries or an alternator. I agree a cap is just like a bandaid, unless you get those XS Power caps that look like a battery, adding a battery helps alot more then you think! 73456w9vbwevsdb sodtbsorutnvsd sdtuspdun sd d f gsdfiusd gdf n Link to comment Share on other sites More sharing options...
WalledSonic Posted March 6, 2018 Report Share Posted March 6, 2018 59 minutes ago, PC Principal said: How much power are you running? While I agree with WalledSonic, some of us cannot afford more batteries or an alternator upgrade, so a capacitor is the next best thing. If the amp that is running your mids is not very big, then I would say that it is ok to run without the capacitor hooked up. It all depends on the current draw of the amp, output of your alternator, battery quality, and wiring (big 3). A 2 farad cap does almost nothing to prevent voltage drop. Capacitance is too small. Start looking at Maxwell caps for real capacitance. At that point tho, due to cost, you have to weigh the benefits of just buying another battery or alternator. 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...
Broke_Audio_Addict Posted March 6, 2018 Report Share Posted March 6, 2018 That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
PC Principal Posted March 6, 2018 Report Share Posted March 6, 2018 36 minutes ago, WalledSonic said: A 2 farad cap does almost nothing to prevent voltage drop. Capacitance is too small. Start looking at Maxwell caps for real capacitance. At that point tho, due to cost, you have to weigh the benefits of just buying another battery or alternator. I completely agree, but if thats all he has to work with and funds are low, he doesnt have much choice. Its either a 2 farad cap or nothing at that point. 2007 Toyota FJ Cruiser RF Power T1000 BDCP RF Punch 400-4 2 P2D4 12's Link to comment Share on other sites More sharing options...
WalledSonic Posted March 6, 2018 Report Share Posted March 6, 2018 20 minutes ago, Broke_Audio_Addict said: Broke, I cant watch Youtube at work right now (too many bosses around), how many Farad is that cap? 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...
PC Principal Posted March 6, 2018 Report Share Posted March 6, 2018 1 hour ago, WalledSonic said: Broke, I cant watch Youtube at work right now (too many bosses around), how many Farad is that cap? They tested a 1 farad and a 100 farad. 2007 Toyota FJ Cruiser RF Power T1000 BDCP RF Punch 400-4 2 P2D4 12's Link to comment Share on other sites More sharing options...
Wicks Posted March 12, 2018 Report Share Posted March 12, 2018 A little late to the party but for what its worth... A 1-2 farad capacitor does not have the capacity for true energy storage which would be beneficial for most audio applications. They were popular way back in the day as a filter device on head units, to get rid of noise and whatnot. Marketing companies got a hold of the trend and blew it way out of proportion to make a buck. For reference, looking at the energy equation of a capacitor: E = 1/2( CV^2) So a 2 farad cap (14V) would contain 196 Joules or Watt-Seconds. Or is able to produce 196 watts for one second. I have a bank of Maxwell caps in my car that equal 500 farads. That equates to 49,000 Joules (Watt-Seconds) at 14V. Big difference. Without a proper alternator, a large capacitor can also become something of a load as its charging and discharging. Another thing to think about. I would agree with the guys above, a HO alternator would be the best investment overall. This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
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