Question about Precision Camera Precision Audio 12-inch 1000-watt Subwoofer Car Speaker

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12 inch subs emit engine noise

I installed twin sony 12inch subs in the back of my 1986 ford laser
with a dub mono block amp set up to a jvc headunit with audio line wireing kit. with the engine off it works just fine but when i turn the engine on i get the engine noise coming out of the 12inch subs. i have power runing down battery side of car and rca's on the other side i have fiddled with the amp settings and nothings worked can you please help me

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Try using a shorter ground u want to be grounded within 12 inches from amp also rca may need ground picking up engine noise

Posted on Jan 31, 2015

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You will have to go buy noise filters for the headunit. This will stop engine noise

Posted on Jan 31, 2009

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I just bought an '02 Honda Civic SI hatchback that


you have to understand impedance to do this. how many ohm are your 12,s`? you can run all 4 subs in mono off one amp if wired right. it works like this, lets say all 4 of your speakers are 4 ohms. if you wire 2 4 ohm speakers in a series it looks like one 8 ohm speaker to the amp. if you wire them in parallel the amp sees it as 2 ohms, ps most amps cant handle less than 2 ohms in sereo 4 in mono bridge. so no if you take one pair say the tens run them in series now take the 12 run them in series. now take and parallel both sets to amp and you have a 4 ohm load. to better understand do a google search for series parallel circuits. also you amp should be marked for bridging if not look up the amp on the manufacturers web site most will let you download the owners manual for free if in doubt about your amps ability keep it at or above 4 ohms

Jun 24, 2011 | Sony Car Audio & Video

1 Answer

MY AMP TURNS ON BUT NO AUDIO OUTPUT TO MY SUBS! I HAVE A PLANET AUDIO AMP 1900 WATTS MONO.


First, test your sub terminals for an Open connection, or no resistance. This is to test if your sub is blown. This is usually the case.

Double check your wiring, not only to the sub, but from your headunit to your sub. Make sure your headunit is configured to work with your amp, if you have a setting for this (for instance, SUB: ON).

Jul 14, 2010 | Planet Audio AP3000D Car Amp

1 Answer

Just hooked up mtx 500d mono amp and 12 inch sub worked for a 1/2 hour then sub quite and led on top of amp just flashes.


either ur ohm load is way off ur pos n neg might be touchin or more than likely u blew u sub is it scratchy when u push in the middle of the cone ? does it push in at all?

May 14, 2010 | Car Audio & Video

1 Answer

Wiring diagram for sony xplod amp and how to bridge one


if you have the model number handy i can tell you

but most sonys are marked like this ..

+12v goes directly to the + termanl on the battry
GND goes to a solid metal object on the car (ground)
REM remote turnon goes to the remote turn on from your headunit

unbridged speaker outputs
+L positve left speaker
-L negative left speaker
+R positive right speaker
-R negative right speaker


ok to bridge a amp (must be capabul of doing so) look for a mono switch and set to mono ..

then take the +L channel put it to your subs + and take the -R channel and put it to the - of your sub

also set the cross over switch to LPF if your running bridged for a sub

if that is a bit hard to understand msg back with the model number of the amp and i can get u the orignal manual for the wireing diagram

hope that helps

Jan 26, 2010 | Sony Z2X-1200 SPL Car Amplifier (1200...

1 Answer

I have audiobahn amp an 3 12inch subs my amp keeps kicking into protection whats my wiring opions mono amp adnot sure what ohm the subs are


Hey sound like your amp is seeing to low of indapendece. 3 subs can be hard to wire. please give mre info on the amp and the subs? dual v/c 4ohm subs are 2ohms wired pos to pos. neg to neg.

Jan 06, 2010 | AudioBahn AW1206T Car Subwoofer

1 Answer

I have a pyle blue wave 12inch 800w subwoofer for a car hook up?


that just means it is dual channel.

if you have a stereo amp just run the left wire to one terminal and the right wire to the other terminal.

if your amp is mono run the wires to the first terminal and then from there to the second set of terminals.

PLEASE NOTE that by doing that you are bridging the speaker if the speaker was 4ohms to start with you just dropped it to 2 ohms so make sure your amp can handle that.

Dec 24, 2009 | Pyle 12" Molded Blue Cone High Power...

1 Answer

Getting my son a sony xplod xm-1652 2 channel what subs would sound good and the things says 1000x2 and 500x2 what is the truth


165 watts x 2 @ 4ohms and 200-230 watts@ 2 ohms or 400-460 watts bridged into a 4 ohm mono load is what the amp will actually do. A single 12 inch sub or a pair of 10 inch subs or 12s would be great

Nov 22, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Jensen XA4100


try using power directly from main to the remote terminal to see if headunit has a problem or the amp.please disconnect remote from head first.

Aug 18, 2007 | Jensen XA4100 Car Audio Amplifier

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