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    bgowdy31's Avatar
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    Electrical Support

    Ok i have been doing some reconstruction on my setup. I have changed wiring and ran multiple runs of 1/0 power wire front to back for pos & ground. After doing more reading up on the Mojo 4k that i purchased, im just wondering if my electrical will be good enough to support it. i have not had a chance to get everything installed yet because i dont have sawzal yet to were i can run all the wire runs.

    This is what i my setup consist of:
    1 Hdc3 18 d2

    ~Memphis Mojo 4kw(wired to 1 ohm)
    ~4 total runs of 1/0 wire(2 POS & 2 GRNDS)
    ~4 Deka Group 31s 105ah each in hatch + Duralast Gold(about 50ah or something like that) under hood
    ~220a Alt



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG




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    UnderFire's Avatar
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    Re: Electrical Support

    450ah seems solid for 4k, but I wouldn't run 4k on a single HDC3 unless it's just for burps.



    97 4runner, 3RZ, 5 Speed

    Headunit: Alpine CDA-9887
    Mids: CDT HD-6CF
    Tweets: CDT DRT-25
    Fronts Amp: Hertz HDP4
    Sub Amp: American Bass VFL150.1
    Substage: 18" SSA ZCON
    Electrical: 160 Amp Alt, Duralast Gold, C&D270FR, 2/0 Throughout

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    bgowdy31's Avatar
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    Re: Electrical Support

    Quote Originally Posted by UnderFire View Post
    450ah seems solid for 4k, but I wouldn't run 4k on a single HDC3 unless it's just for burps.
    lol i know. im going to recone it at tax time. for now im only going to set it at probly 2500rms with dmm or maybe 3k for some TL test burps or something. the hdc3 would hate me if i put all 4k to it



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

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    audiobaun's Avatar
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    Re: Electrical Support

    Im thinking that alt,may be working its *** off..220a...Thats alot of power to keep up with, and 5 total batts..I always figured any thing over 3k should be 255-300 amp alt?LOL, you just ansewred my next question..Never mind




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    bgowdy31's Avatar
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    Re: Electrical Support

    Quote Originally Posted by audiobaun View Post
    Im thinking that alt,may be working its *** off..220a...Thats alot of power to keep up with, and 5 total batts..I always figured any thing over 3k should be 255-300 amp alt?LOL, you just ansewred my next question..Never mind
    well its "rated" 220a, but it does around 248 @ 2krpms when i had it tested. i know its not huge so im figuring the 4 dekas will hold their own on some of the power



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

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    Re: Electrical Support

    It may be rated at 250A at 2kRPM, but remember you have a car to run, as well as (maybe?) a 4 channel amp. You're not going to be generating more power than you are consuming at full amp draw in your system, but you have a good amount of reserve. Just know that you won't be in the 14V range when you're really pushing it. But this is definitely a good start.

    Me personally, I will always spend more money on as much alternator power as I can afford, rather than batteries.



    Quote Originally Posted by ducatipaso View Post
    15inch subs can't play fast beats, they take more power and that taxes the vehicles electrical system. You will wake up and "hear" then see the light at the end of the tunnel and it will be 3 10's pounding so hard you wont even open your trunk or turn your system on because you 15's will sound sloppy & weak.
    Quote Originally Posted by benbenondatrack View Post
    stfu lesbo.why are you worried about me so much? you must want to date me ya little cookie monster but i dont even like sweets. your just a cup full of ice, dirt dead nasty azz ice...without the water.

    Dat Build Log: http://mobileaudioforum.com/forum/showthread.php?2566-1999-Chevrolet-Blazer&highlight=1999+blazer

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    Re: Electrical Support

    Quote Originally Posted by gckless View Post
    It may be rated at 250A at 2kRPM, but remember you have a car to run, as well as (maybe?) a 4 channel amp. You're not going to be generating more power than you are consuming at full amp draw in your system, but you have a good amount of reserve. Just know that you won't be in the 14V range when you're really pushing it. But this is definitely a good start.

    Me personally, I will always spend more money on as much alternator power as I can afford, rather than batteries.
    True.... I dont run a 4-channel amp to my mids and highs they run off stock



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

  8. #8
    bgowdy31's Avatar
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    Re: Electrical Support

    Quote Originally Posted by gckless View Post
    It may be rated at 250A at 2kRPM, but remember you have a car to run, as well as (maybe?) a 4 channel amp. You're not going to be generating more power than you are consuming at full amp draw in your system, but you have a good amount of reserve. Just know that you won't be in the 14V range when you're really pushing it. But this is definitely a good start.

    Me personally, I will always spend more money on as much alternator power as I can afford, rather than batteries.
    True.... I dont run a 4-channel amp to my mids and highs they run off stock



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

  9. #9
    gckless's Avatar
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    Re: Electrical Support

    Quote Originally Posted by bgowdy31 View Post
    True.... I dont run a 4-channel amp to my mids and highs they run off stock
    Bro, you're running 4kRMS to subs and HU to highs/mids?? Step yo game up! But seriously, even on stock speakers, a highs amp makes a world of difference.



    Quote Originally Posted by ducatipaso View Post
    15inch subs can't play fast beats, they take more power and that taxes the vehicles electrical system. You will wake up and "hear" then see the light at the end of the tunnel and it will be 3 10's pounding so hard you wont even open your trunk or turn your system on because you 15's will sound sloppy & weak.
    Quote Originally Posted by benbenondatrack View Post
    stfu lesbo.why are you worried about me so much? you must want to date me ya little cookie monster but i dont even like sweets. your just a cup full of ice, dirt dead nasty azz ice...without the water.

    Dat Build Log: http://mobileaudioforum.com/forum/showthread.php?2566-1999-Chevrolet-Blazer&highlight=1999+blazer

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    Re: Electrical Support

    Considering on music, you wont be drawing even close to the max amperage, and you have plenty of battery for burping, and being that your setting your gains down anyways, you should be more than fine.




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    Re: Electrical Support

    I never believed in that whole alt being too small to charge multiple batteries I have 6 batts off a 180 amp alt and it never "works too hard" all ways charges good jumps back up to 14.4 after putting a load on it they say an alternator doesnt really charge Ur batts any ways it serves some other type of purpose but Ur electrical is for sure decent I was going to say 3 group 31's and Ur set I had a saz 4500 off 2 group 31's and only stopped to 12.4 which wasn't bad for only 2 batts



    Hu:pioneer deh-prs80
    Eq:audiocontrol three.2
    Substage:4 sundown zv4 18s
    Front stage:6 pwx 6.5's 2 pwx 8's and 4 obaidian st1 tweeters
    Sub amp:sundown saz 5000d
    Front stage amp:sundown sax 125.4

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    gckless's Avatar
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    Re: Electrical Support

    Quote Originally Posted by jaeguerra909 View Post
    I never believed in that whole alt being too small to charge multiple batteries I have 6 batts off a 180 amp alt and it never "works too hard" all ways charges good jumps back up to 14.4 after putting a load on it they say an alternator doesnt really charge Ur batts any ways it serves some other type of purpose but Ur electrical is for sure decent I was going to say 3 group 31's and Ur set I had a saz 4500 off 2 group 31's and only stopped to 12.4 which wasn't bad for only 2 batts
    Just because you are seeing 14.4V doesn't mean your batteries are charged. And who told you an alternator doesn't charge batteries? Do batteries have the magic smoke in them too????? I'm gonna be upset if I have been thinking they didn't all this time and I actually need to recharge them.....



    Quote Originally Posted by ducatipaso View Post
    15inch subs can't play fast beats, they take more power and that taxes the vehicles electrical system. You will wake up and "hear" then see the light at the end of the tunnel and it will be 3 10's pounding so hard you wont even open your trunk or turn your system on because you 15's will sound sloppy & weak.
    Quote Originally Posted by benbenondatrack View Post
    stfu lesbo.why are you worried about me so much? you must want to date me ya little cookie monster but i dont even like sweets. your just a cup full of ice, dirt dead nasty azz ice...without the water.

    Dat Build Log: http://mobileaudioforum.com/forum/showthread.php?2566-1999-Chevrolet-Blazer&highlight=1999+blazer

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    bgowdy31's Avatar
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    Re: Electrical Support

    Quote Originally Posted by gckless View Post
    Bro, you're running 4kRMS to subs and HU to highs/mids?? Step yo game up! But seriously, even on stock speakers, a highs amp makes a world of difference.
    *** that for my daily listenin my hu does me fine. I dont go over 1/2 gain driving. 90% of time im only at 1/4 driving around town. At comps highs dont matter to me



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

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    gckless's Avatar
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    Re: Electrical Support

    Quote Originally Posted by bgowdy31 View Post
    *** that for my daily listenin my hu does me fine. I dont go over 1/2 gain driving. 90% of time im only at 1/4 driving around town. At comps highs dont matter to me
    Well hey, if you're happy with it, that's all that really matters.



    Quote Originally Posted by ducatipaso View Post
    15inch subs can't play fast beats, they take more power and that taxes the vehicles electrical system. You will wake up and "hear" then see the light at the end of the tunnel and it will be 3 10's pounding so hard you wont even open your trunk or turn your system on because you 15's will sound sloppy & weak.
    Quote Originally Posted by benbenondatrack View Post
    stfu lesbo.why are you worried about me so much? you must want to date me ya little cookie monster but i dont even like sweets. your just a cup full of ice, dirt dead nasty azz ice...without the water.

    Dat Build Log: http://mobileaudioforum.com/forum/showthread.php?2566-1999-Chevrolet-Blazer&highlight=1999+blazer

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    bgowdy31's Avatar
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    Re: Electrical Support

    Quote Originally Posted by gckless View Post
    Well hey, if you're happy with it, that's all that really matters.
    Dont get me wrong i have thot about highs but then i was like meh im content with them the way they are



    MY RIDE- 2001 HYUNDAI SANTA FE (BEST SCORE 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRIC)
    2 SOUNDQUBED SDC2.5-15'S ~ 8.2 CUBES NET ~ 12" AERO @ 40-ISH HZ ~ SHARK 2500 @ 1OHM(2 LATER)
    STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0


    ~2010 FCBC 450SD 3RD OVERALL~
    ~2011 FCBC 450SD CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

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