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Thread: Lack of power?

  1. #1

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    Default Lack of power?

    I have an Alpine head unit CDA9886M with 6 pre outs, using the one marked SW into a Polk PA D4000.4 bridged into 2 Polk MM1040 subs they are not very loud, I checked the polarity on the subs and tried every setting but, you can stand right next to them and talk to the person next to you...... any thoughts? at 400 watts to each bridged they sound way under powered.

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    Are you using Low pass settings or High Pass?


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    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

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    400 watts isn't that much. I think you're expecting too much. That'll be enough for good solid bass but it will NOT be enough to drown out your conversation.

    But yeah, check your settings to make sure you're playing the right frequencies thru them.

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    Settings: Stereo, switch on BPF, LPF switch out, LPF knob about 100hz, level between 3v and 200mv. Head unit: sub level and bass level at max. I cant say there is even a solid thud, more of a rumble. I have a 400 watt audiobahn with a single 12 that sounds 10 times as loud and more solid hooked to a factory radio.

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    Yeah I just hooked up one Polk Sub with a 500 watt amp and I should have got 1000 or 1200!
    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

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    I know you said you checked it, but try reversing the polarity on one of the subs and see what happens.
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it

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    Quote Originally Posted by exalted512 View Post
    I know you said you checked it, but try reversing the polarity on one of the subs and see what happens.
    -Cody
    Hopefully not this! LOL

    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

  8. #8

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    Quote Originally Posted by Lasareath View Post
    Hopefully not this! LOL

    If that happens, you did something drastically wrong...haha
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it

  9. #9

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    I just hooked up an AudioBahn A4002T rated at 100 watts per channel, it's only a 2 channel amp. It sounds
    WAAAAAAAY louder and clearer. While I'm not arrogant enough to think I'm beyond making a mistake, I've been a Honda technician for 21 years, my specialty is electrical. I've tried 2 of these PAD4000.4 amps with the same result.... pulling out what little hair I have left.

  10. #10

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    WOOHOO...... IT WORKS!
    the problem was the instructions, or should I say, the lack of instructions. While the instructions do show you what is printed right on the amp, it does not elaborate on any of the settings when connecting 2 bridged subs. As per the instructions, used FRONT inputs,set to stereo, BPF, adjusted levels...... only on the FRONT side, NOWHERE does it tell you to set the adjustments for REAR. A little less information on the obvious and, a little more on the details would be a better manual

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