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 speakers I can wire to my amp? a volfenhag zx-8200 1000 watt amp. Currently 800 watt bose sub bridged to it, capacitor as well. and a 150amp circuit breaker. I have a 14 volt 105 amp alternator.


1. It depends on how many and what type of speakers you run.

It is a 'bridgeable' amp and therefore has a variable number of configurations.

You can run that Bose sub on one channel and twin up. It's not a great idea to have the drivers max near or lower than the output of the amp and puts out serious thump from a 30W cone.

Jan 15, 2017 | AMP Car Audio & Video

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.

Sep 25, 2012 | Volfenhag ZX-4712 Car Subwoofer

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 Audio & Video

1 Answer

Sub box dimentions


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

Jul 17, 2009 | Volfenhag ZX-4812 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 Audio & Video

3 Answers

Volfenhag zx-8400 amp and ZX-4712DVX subs


First of what you have should work great together....now the next thing is: does the bose system carry powered speakers if so the spliced speaker wires should be put onto a converter(a small box with RCA outputs) then you should make sure the levels in the little box is not set to full but 75%, if set to full you can be looking at distortion. Then they should set the amps to full range and see what you get.........oh and by the way you don't have to use that little controller(with the telephone wire) for the bass. You can control the bass with the frequency controllers on the amp or your head unit. And it's not a german thing trust me they come with nearly all amps now. These guys are full of ****. If you don't get the punch you want they should try bridging the amp for more of a punchy sound. Oh and you can use that decent sized box with the vent holes......that should work fine.

Jun 15, 2008 | Volfenhag Car Audio & Video

1 Answer

Volfenhag ZX8300 on with radio, off with cd or mp3 player


You're using the wrong control wire. You're likely using a wire marked antenna control. You need to use the one marked amp control. They are both blue.

May 22, 2008 | Ultra Linear UL-2200D Car Audio Amplifier

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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