Question about Volfenhag ZX-4812 Car Subwoofer

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Subs not working but power to amp and cap are

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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  • Anonymous Feb 19, 2009

    i tried testing the amp on anther sub and i got nothing but i tested the other sub on the head unit and i could hear music. i heard sound but not music when i did it with the volfenhag's

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When u press down on the cone do u here the speakers if u do and u have to let go off the cone and you dont hear noting just some bass im tinking ur subs are burn out(they dont work)

Posted on Feb 19, 2009

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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.

Sep 25, 2012 | Volfenhag ZX-4712 Car Subwoofer

1 Answer

Brand new volfenhag 15 1500 wattsblew on 1200 watt amp why


There are a couple of reasons why this might have happened. Subwoofers are finicky. I always recommend to my clients that you don't apply full power to your sub until you have had one week of playing it at low volume. This helps to condition the voice coil. When at full power the voice coils heat up rapidly. To go from cold to heat fast will warp the coil. The bad news is that this would fall under the "abuse" category for refunds. Then again, you might get lucky with a return unless you bought it from an individual. The other thing might be how it was wired. If your amp is 4 ohm stable and you wired to a 2 ohm load, it may have shorted something. But you would think that would be the amp. Not sure this answered the question, but just a few ideas to think about.

Aug 16, 2011 | Volfenhag ZX-4715 Car Mid-Range

1 Answer

Not working


sure it is not your amp?? if so these are pretty cheap subs to just buy new.

Apr 21, 2010 | Volfenhag ZX-4710 Car Subwoofer

1 Answer

Volfenhag ZX4725 i am buying this subwoofer and


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.
Current (I) = Voltage (E) divided by Resistance(R).
Voltage = Current Multiplied by Resistance.
Resistance = Voltage divides by Current.

Apr 17, 2010 | Car Speakers & Subwoofers

1 Answer

Sub box dimentions


12 " subs need 1.5 cubic feet sealed box...

Jul 17, 2009 | Volfenhag ZX-4812 Car Subwoofer

1 Answer

Like to keep this


Spkrs will sometimes be intermittent if the installer has twisted the frame a little or tighten down too much.Remove the spkr and see how it works when it is not mounted.If it still is not work right,then it is probly defective.Good luck and please rate this answer,thanks.

Apr 04, 2009 | Volfenhag ZX-4712 Car Subwoofer

1 Answer

Is my amp powerful enuff for woofer


That amp should work fine for that sub, but you should make sure that the amp has a good power system going to it, and the box for your sub is the right one. Either one of those things could cause problems if not done correctly.
-Dynami

Apr 02, 2009 | Volfenhag ZX-4812 Car Subwoofer

1 Answer

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...


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

Feb 18, 2009 | Car Speakers & Subwoofers

2 Answers

Sub box inner space measurements in inches


First off I have some questions to ask you? what size are your subs and what is the max power on them and the brand name?

Dec 18, 2007 | Car Speakers & Subwoofers

1 Answer

Subs stopped working & protect light on the amp is red...


well at this point i would say it is both,, the subs fried because your amplifier passed dc [direct current] and fried the voice coils on your subs....return them if they are under warranty,, the amplifier sound like you either operated it beyound its specifications or it has a defective output stage allowing it to pass or leak dc....it turned the voice coils into the equivelent of the runners in a toaster oven....when an amp passes dc it is going to do so to whatever speakers you hook to it....so either bring it to a shop to be fixed/ return it to place purchase for exchange or throw it away.....or you will continue to experience the same problems....I am sorry..ps the amp goes into protection when it detects a short...[ the short is produced by the amp and it is detecting its own fault and putting it in to protection after it BURNS up your drivers....

May 16, 2007 | Volfenhag ZX-4712 Car Subwoofer

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