Question about Rockford Fosgate 800.2 Car Audio Amplifier

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Feedback with aftermarket amp on 09 murano

I istalled a hi low adapter on 09 murano and the car has pushstart no key and the subs emit a howling sound with the key off?

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Hello, Quick question..is your amp turning off when the key is in the "off" position...If your amp is not turning off check your amp/remote wire.

Posted on Nov 30, 2008

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Can i hook up aftermarket amp if so how


yes, buy a hi/low converter like this:
http://www.ebay.com/itm/HI-LEVEL-INPUT-ADAPTER-HI-LOW-ADAPTER-AMP-INSTALLATION-/200738024366?pt=Car_Audio_Video&hash=item2ebceb2bae&vxp=mtr

that connects to a speaker you have and gives you RCA connections for you amp. follow the diagram included in your purchase of your hi/lo converter.

Nov 10, 2013 | Car Amplifiers

1 Answer

Aftermarket amp


The Chrysler Dodge radio sends full volume to the Infinity amplifier using other cables it sends voltage with data to the amplifier and tells the amplifier lower or increase the volume, there is no way to tap or get the signal that is way pac build this interface for your radio CAN buss adapter hi low

Jun 01, 2013 | Car Amplifiers

1 Answer

I have a couple of questions regarding my jl 500/1. the first question: i just transferred my amp/subs (subs are JL W3s) to a new vehicle, and the place i had install it switched the "high/low"...


ok..well theres a lot of question in there, lemme take a shot at it.

the hi/low switch explained: the hi/low switch tells the amp what signal voltage is being delivered to the amp...hi-power (4-15volts) or low-power(micro-volts). Your aftermarket head unit had what are called pre-outs (or preAmp outs) meaning the source signal (your music) is not amplified before being delivered to the amplifier...sooo...your amplifier setting for your aftermarket radio would be 'low' to tell the amp that the music source being sent to it is low-voltage.

Typically a manufacturers radio will not have pre-outs, they will be amplified by the radios internal amp to anywhere from 4volts on up, and you need to tell your jl audio amp that the source music being supplied is 'hi' voltage.

soo...of course...if you are sending 10volts to the amplifier and tell it that your sending micro-volts (low setting) your amp will over-amplify the signal and thus the overwhelming bass you experienced.

May 14, 2011 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My powered mixer Behringer is buzzing


Make sure the buzz doesn't happen because of feedback of speakers into mics. When feedback is processed it often goes to a buzz instead of the usual howl.

Also check that you are running adequate inout into the effect since a very low inout will incur digitizing noise and loss of signal=to-noise ratio.

Jun 02, 2010 | Behringer POWERED MIXER, 20 CH, 400 WTS...

2 Answers

I have an Alpine MRD-M605 amp that recently has started having issues. My subs only produce sound when my deck is turned up full blast. The setup had been working for over a year with no problems. The subs...


If your deck is aftermarket; Does it have a dedicated Subwoofer output? if so, check the control in the deck (sub gain). If you are using a factory radio, and a high to low level adapter (speaker wires to RCA), it may be bad (not too uncommon) or check your fader front/rear any difference? Otherwise, you have one of two problems. A bad preamp in the deck or a bad pre amp in the amp. Both are fairly uncommon. More than likely it's a setting. Hope this helps

Jun 23, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Can't get my amplifier to work.


My homie had the same problem with his escalade they adapted an rca line adapter from the factory wiring to geta signal to his amplifier and it just wasnt hitting like it should so we installed a new deck and plugged the rca cords right into it and boomboom pow it was hittin like a champ-we figured that the stock premium system that was incoprporated into the truck had some sort of an onboard amp that was filtering the bass from the door speakers and which was limiting the bass output to the rca adapter and thus on down the line to the amplifier- so maybe ya might want to look into getting an aftermarket deck and see if that helps your cause-good luck

May 21, 2009 | Alpine MRP-M450 Car Audio Amplifier

1 Answer

500X emitting feedback squeaking


One source of hum is from bad rectifiers in the car alternator, if this problem stops when key is turned to accessory then have your alternator checked for bad rectifiers.Good luck and please don't forget to rate.

Apr 09, 2009 | Rockford Fosgate Punch 500X Car Audio...

2 Answers

Subs not as loud as they should be plz help


RCA output level and speaker level output have different voltages and currents. The problem you are describing is common to folks trying to connect an OEM dash unit to an aftermarket amp. If your amp has speaker level inputs, try wiring to those......best bet..buy a new head unit, it'll sound better...louder and cleaner.

Mar 11, 2009 | Kicker IX404 Car Audio Amplifier

1 Answer

Protection Circuit


Yes, always a good idea to use a wire wheel and drill to get a super clean place for your ground. That was going to be the first thing I suggest. I would use a meter and see how many ohms the subs are at right now. It may be two low and there is too much current demanded form the amp at once. for a good sub wiring guide, go to
http://www.crutchfield.com/learningcenter/car/subwoofers_wiring.html
Don't forget to leave feedback.

Jan 23, 2008 | Kenwood KAC-8103D Car Audio Amplifier

1 Answer

Amplifier directed 600/4


chenge the seting thu the microfon for minim

May 31, 2007 | Directed 600D Car Audio Amplifier

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