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    Krismanme's Avatar
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    Speakers extremely quiet st full volume

    Hows it going guys, long time reader first time poster. My issue is i just picked up a new HU a dual xd250, cheap POS i know, as my last stereo was recently stolen and i need something until i can rustle up some extra cash. My issue is i currently have 4 400wpeak earthquake fs6.5r's running to this HU and at full blast im getting very low amount of sound, so low as soon as i turn the car on its drowned out. I believe the issue may be that the speakers are too powerful for the deck as the deck outputs 60wmax total so about 15w max each speaker. I aslo checked polarity at the speaker (tried it both ways) no luck. I plugged in a small 3" speaker i ha laying around and it played fine at any volume. Any ideas? Should i return the pos and just wait to buy a new hu?







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    Re: Speakers extremely quiet st full volume

    have you tried jus 2 speakers off the HU?

    what is the dB sensitivity of the earthquakes?




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    Re: Speakers extremely quiet st full volume

    Ive tried just one off the hu, not 2, and the dB sensitivity is 89dB




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    Re: Speakers extremely quiet st full volume

    Rms stats are all that matter. It sounds like the product of a cheap head unit and cheap speakers. You most likely have your crossover settings wrong or the head unit you got has some issues.



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    Re: Speakers extremely quiet st full volume

    The speakers are 400max and i cant find stats anywhere for their rms values, the hu however is 5w rms x4 @ 4ohms. I also had hooked up a smaller speaker which played woth no issue. So either these speakers are blown, they are extremely underpowered, or something else going on. Afaik there is no adjustable xover, the wiring must be correct as i was able to get my otherw speaker working. Thank you for the help please let me know if you need more info.




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    Re: Speakers extremely quiet st full volume

    Does anyone else know what could be causing this issue? Is there anyway i could test the speakers to see if they are blown? Im going to attempt the 9volt battery test tonight, is there any other way to rule out the speakers as the issue? Or a way to rule out the hu? Id hate to purchase a better hu when the speakers are blown anyways.




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    Re: Speakers extremely quiet st full volume

    Quote Originally Posted by Krismanme View Post
    Does anyone else know what could be causing this issue? Is there anyway i could test the speakers to see if they are blown? Im going to attempt the 9volt battery test tonight, is there any other way to rule out the speakers as the issue? Or a way to rule out the hu? Id hate to purchase a better hu when the speakers are blown anyways.
    5w rms with 89db sensitivity on those speakers isn't going to produce much volume. You need to find more efficient speakers, or save up for a better head unit. How much did you pay for that head unit? Also, look into a cheap (but good!) amp for the speakers and cross them over around 120hz or so.


    edit... I only asked how much you paid for the headunit because you can find several pioneer, jvc. etc. with aux and usb for 100 or less on amazon.




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    Re: Speakers extremely quiet st full volume

    sounds like HU settings are set for subs only



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    Re: Speakers extremely quiet st full volume

    Yes, 5 Watts RMS is not going to be loud at all with a speaker that is not that sensitive.

    For cheap head units, I like to use the Pioneer DEH-1100 or 1200. You can get them for around $60 New..14W RMS x 4. Some Kenwoods are around 22W RMS x 4.
    Otherwise pick up a 50W X 2 (or more) amp to power your speakers with.



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