Question about Car Speakers & Subwoofers

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I installed 2 12" volfenhag subs with a power cap and had it all put in and the inner speakers werent working so i switched em out and put in new ones and the subs wont work now. i poped the fuse and had to replace it with alum. foil. what do i need to do?

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  • shortyssk8st Feb 19, 2009

    i triedthe amp on a differant sub and i got nothing. but i hooked the other sub up to the head unit and it pushed sound.

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I dont recommend using aluminum foil buy the correct fuses they arent exspensive. any auto parts store should carry most types. first check all of your power connections then check your ground connections if all looks and seems secure check the physical wire connections on the speakers. make sure the remote wire is connected properly. if none of this works try a different audio source to check the speaker itself

Posted on Feb 18, 2009

  • Ryan Lee
    Ryan Lee Feb 19, 2009

    sound like the resistors in the amp itself have fried this could be due to several issues. like i mentioned before i would never recommend using aluminum foil for any fuse replacement. It is possible that by using the foil you allowed a current which was improper and or shorting out to pass through the safety compliance ordinates of the amplifier itself. if this is the case which it does sound viable. being that you hooked it up to a different system and still got no sound check your subs on that system and if they work you have basically answered this question on your own. process of elimination wise anyways.



    Maybe a new amp is in order.

    a neat trick to try is if your looking for a new amp and happen to wonder in a stereo shop ask them for outdated or last years inventory and see if they can offer any deals. products are still good just not the latest out.



    Hope this fixya.



    Ryan

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1 Answer

What size wire should i have for two 12 volfenhag subs


I would use 10 to 12 gauge wiring. As fare as your amp's fuse...Check to make sure you are using the correct amp fuse. Make sure your subs are wired to a ohm load your amp is stable with. Check your ground and positive connections. Check and make sure your amp's gain settings are correctly set. Your amp's gain should not be turned all the way up.

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No the LOWER the resistance the MORE Output or Draw, If say it is 100 Watts into 4 Ohms, if you used a 2 ohm speaker it would draw 200 watts.(only if capable of delivering that amount of power) The LOWER the Resistance, the HIGHER the Current Draw. WATTS = AMPS x VOLTS. (This is not strictly true with amplifiers output though, as it is an AC Current, and a "Reactive" load, it has, Inductance, Capacitance and Resistance, all in one.and is worked out via a Formula) see below. http://en.wikipedia.org/wiki/Audio_power

http://www.hometheaterhifi.com/volume_1_1/v1n1spk.html

Now with Dual Voice Coils, Essentially, you can think of these speakers as TWO speakers in ONE enclosure. As such, They are basically TWO Speakers. Please see the website below it explains everything for you. http://www.diyaudioandvideo.com/FAQ/Wiring/
Everything is a function of Resistance and Ohms law.
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-Dynami

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