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    woe_ismitch's Avatar
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    My subs start fading when both are connected. Help?!

    I moved my entire system from my Pontiac Grand Prix to my new Jeep Wrangler. Everything is hooked up right. I have the right wiring system. My amp is a 1000w Sony Xplod powering two 12" Dual subwoofers with 500w peak each. In my grand prix, they sounded spectacular, both of them were wired up and worked. Now when both are wired up in my Jeep, they sound awful. When only one is connected, it sounds fine though. The only thing i'm using is a different head unit. It's an older Pioneer head unit. Could that be the problem? I'm a little new to all of this so help would be great! Thanks.







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    Re: My subs start fading when both are connected. Help?!

    sounds like you have them out of phase man,reverse the speaker wires on one and see if it sounds better,thats the first place you should start,if thats not it then go from there



    bought from: wccoug21 sundownz thegreatestpenn loudwhat? woofercooker jonny101abc spooney fasfocus00

    sold to: jpx18 Nateberrier Ge_off_me spm_215 2lo2flo akheathen etm34 djjdnap jfroghobo traded: SPLaudio Zeuslicious

    under construction:
    1992 Toyota Paseo(1) Pioneer DEH-P500UB head unit(2)American Bass VFL 500.1 amps(4) stinger batteries,building 2 10's in tubes

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    Re: My subs start fading when both are connected. Help?!

    Yep. Phase ......real simple to check



    Head unit- cz702
    Speakers- 4 crescendo pwx. Aq tweeters
    Mids/highs amp- ppi a600.2 and ppi a200.2
    Sub- 2 12" zcons
    enclosure- in the works
    Sub amp- aq3500
    Alt- 220 amp
    Batts- 5 c&d 75ah and 1 bt-80
    Wiring- 4 runs of 0 awg and big 3

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    Re: My subs start fading when both are connected. Help?!

    oh, i've reversed them multiple times. i've even used brand new wires. thanks for the reply though!




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    Re: My subs start fading when both are connected. Help?!

    when i have one sub connected, it works just fine, sounds just like a 12" should. as soon as i add the other one, they both lose their power and sound awful. i have switched the wiring and changed them around but that doesnt seem to be working.




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    Re: My subs start fading when both are connected. Help?!

    Did you switch 1 speaker at a time, or both at the same time?




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    Re: My subs start fading when both are connected. Help?!

    i've switched them one at a time, that didnt seem to be working so eventually just bought new speaker wire for both of them and that still didn't fix it.




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    Re: My subs start fading when both are connected. Help?!

    Have you hooked up both subs individually to see if they both sound good alone or only one?




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    Re: My subs start fading when both are connected. Help?!

    yes sir, both of the subs equally produce the same quality on their own.




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    Re: My subs start fading when both are connected. Help?!

    Quote Originally Posted by woe_ismitch View Post
    i've switched them one at a time, that didnt seem to be working so eventually just bought new speaker wire for both of them and that still didn't fix it.
    ok are they both wired together or one speaker on each channel?



    bought from: wccoug21 sundownz thegreatestpenn loudwhat? woofercooker jonny101abc spooney fasfocus00

    sold to: jpx18 Nateberrier Ge_off_me spm_215 2lo2flo akheathen etm34 djjdnap jfroghobo traded: SPLaudio Zeuslicious

    under construction:
    1992 Toyota Paseo(1) Pioneer DEH-P500UB head unit(2)American Bass VFL 500.1 amps(4) stinger batteries,building 2 10's in tubes

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    Re: My subs start fading when both are connected. Help?!

    If both subs are good then I'm still standing by phase issue ...... how are your subs hooked up? And what amp?



    Head unit- cz702
    Speakers- 4 crescendo pwx. Aq tweeters
    Mids/highs amp- ppi a600.2 and ppi a200.2
    Sub- 2 12" zcons
    enclosure- in the works
    Sub amp- aq3500
    Alt- 220 amp
    Batts- 5 c&d 75ah and 1 bt-80
    Wiring- 4 runs of 0 awg and big 3

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    Re: My subs start fading when both are connected. Help?!

    Sounds like you are raising the imp and lowering the power



    2007 Black Diamond FJ Cruiser with Box built by Pro-Rabbit
    H/U Kenwood DNX6960
    Sub: 1-18" Zv3 with NS coils and cone Sub Amp: Mmats 2100.2
    Front Stage: Hybrid Audio L6 mids, SEAS Neo Tweets, SAX 100.4, RF 3sixty.2
    Bought From: Rio, davidtemple, Bassin Buick, Pro-Rabbit, Kangaroux, KyleBechtold Traded With: WhiteDragon551 Sold To: jdmeklove, Kpozr2, 97accordalpine

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    Re: My subs start fading when both are connected. Help?!

    they are both on one channel, it worked in my other car this way. should i put each speaker on different channels?




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    Re: My subs start fading when both are connected. Help?!

    Are they single 4ohm voice coills? How are you wiring them up?



    2007 Black Diamond FJ Cruiser with Box built by Pro-Rabbit
    H/U Kenwood DNX6960
    Sub: 1-18" Zv3 with NS coils and cone Sub Amp: Mmats 2100.2
    Front Stage: Hybrid Audio L6 mids, SEAS Neo Tweets, SAX 100.4, RF 3sixty.2
    Bought From: Rio, davidtemple, Bassin Buick, Pro-Rabbit, Kangaroux, KyleBechtold Traded With: WhiteDragon551 Sold To: jdmeklove, Kpozr2, 97accordalpine

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    woe_ismitch's Avatar
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    Re: My subs start fading when both are connected. Help?!

    i have a Sony Xplod 1000w amp and they are just wired directly to the two ports on the enclosure i have. on one channel. i have the negatives on one side and the positives on the other, from each sub.




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