Question about Car Amplifiers

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Amp I have a amp iam trying to hook up but i want to keep my factory head unit,1. does my unit have rca's or not 2. if not how do i hook up my amp with out them ? I have a 2000 dodge durango. its not infinity

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Re: amp - Car Amplifiers

Yes, a line-out converter should do it.

Posted on Jan 07, 2008

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Re: amp

If its the factory radio more likely it dont have RCAs ..You will need a 'speaker to line level adaptor" ..This has 3 or 4 wires at one end and RCAs at the other.simply connect a left and right set from behind radio or from rear speakers into left and right sets on adaptor ..then connect your RCA cables side to amplifier using RCA wires.

Posted on Dec 15, 2007

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How hook amp up to a oem integration SNI-15 line output convertor

The amp needs an RCA input to communicate with the head unit. SOLDER the wires that come out of the head unit for the front speakers to the SNI-15, making sure that the polarity and right/left is correct. Do this for the front and rear speakers if you have a 4 channel amp. Cut the wires if you add new speakers and run the new wire from the speakers or sub box directly to the amp, or skin back the wire insulation and tap on if you use the factory speakers :( then plug your RCA cable from the SNI-15 to the input side of the amp. Don't forget that most new cars have their own amp so you might have to locate it and bypass the speakers wires around it. Don't make a mess in case you have to put everything back to factory for resale. You can avoid all this by installing a new/modern head unit with built in RCA outputs for front, rear, and sub woofer. I hope this helps. Ray

Apr 23, 2014 | Car Amplifiers

1 Answer

I have an kenwood 600watt amp and then amp keeps turning off and on when i turn the gain up

1) Pull your speaker wires, grab an ohm meter and confirm that each speaker reads 4-8 ohms nominal impedence.
2) Ohm out your speaker wires to chassis ground & confirm no 0 ohm (short)
3) Confirm 12 volts plus at amp power wire. Low voltage will send amp into protect mode.

If speakers are disconnected and amp turns on, look for a red led. If red then you have an internal problem that is protecting the amp.
If going into protect mode due to internal issue, then it's time for a new amp.
Also, you will need to use a "line out adaptor" in order to covert from speaker out to low level (RCA) input to amp. Too much voltage from head unit can fry the pre-amps in the amp.

And yes, I'm an electronics tech and yes, I know my stuff on car audio:)

Just a side note, never confirm a fuse as good by sight:)

Nov 15, 2013 | Kenwood Car Amplifiers

2 Answers

How do i fix my Power Acoustik LT-980/2 car amp, it keeps on going into protect mode.

Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty . .A thumbs up would be greatly appreciated if this answer is helpful to you

Aug 10, 2011 | Power Acoustik LT-980/2 Car Audio...

1 Answer

I have a 1400 watt cruch amp & i hooked it up myself. when i turn the radio on the power wire on the amp comes on, bt if the audio cords are hooked up, the protection light comes on. if i dnt hook the...

Should the amplifier go into protect mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected.

1. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault.

2. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit.

3. If the amplifier seems fine with RCA cables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic

Dec 08, 2010 | Mobile Authority A-500 Car Audio Amplifier

1 Answer

Xm-2002gtr amp keeps kicking protect light on

check your amp and speakers and make sure their both hooked up 4 ohm instead of 2 ohm because if you have 1 set of voice coils on your speakers they can only be hooked up four ohm and not bridged to your amp because if you keep trying this you will lock up your speakers if the speakers are only 4 ohm than just hook them up regular to each channel on your amp if your trying to brigde four ohm speakers to your amp it will keep going into protect or worst case scenario you will fry your speakers and you can check your ohm with a ohmmeter trust me my brother owns a stereo shop

Oct 19, 2009 | Sony Car Amplifiers

1 Answer

I need to know how to wire this amp up!

The B+ terminal on the amp goes to the Positive battery terminal with a fuse inline probably at least 60amp for this amp. The GND terminal of the amp goes directly to the chassis of the vehicle (metal) and try to keep the ground 18" or under. The REM terminal of the amp goes to the remote turn on wire from your deck, usually the BLUE wire. Some decks have 2 one for an amp one for a electric antenna. Dont hook it to the power antenna wire or your amp will only work when the radio is on. Won't work with the cd player. Hook the left and right inputs (rca) to your source unit (deck). Hook your speakers to the left and right channels of the amp with the correct polarity (+) (-) . Set the cross over on the amp HP-AP-LP for what ever application you are using it for like subs or components. There is a frequency adjustment for the crossover on the opposite side of the amp. This should be set in accordance with your crossover selector and speaker requirements. The punch bass knob should only be used with a subwoofer application. The left and right gain turn up or down the gains of the amp. (power output) These are set depending on the output voltage of your preouts (RCA) on your deck. A small flat head screw driver can be used. Set them between 1/2 and 3/4 if you dont know but make sure they are the same. Your ready to go. Hope this helps.....

Sep 26, 2009 | Rockford Fosgate Punch 500a2 Car Audio...

1 Answer

Car amp turns off when RCA wires are plugged in.

Hello joshua_m_moe,

A short or ground on the RCA cables or too high of an output level from the head unit could cause this. First, try it with the amp gain turned all the way down. Then, replace the cables with a known good pair. If the problem is still there, it's probably coming from the head unit. If there is another pair of preamp outputs, switch to them. If the problem still persists, I'd suspect the head unit.

Hope this helps.

Sep 18, 2009 | Power Acoustik TS1440-2 Car Audio...

2 Answers

I got 4 ''15 inch kickers 2 5500watt power acoustik mono amps my problem is 2 kickers on the right side hittin hard but the 2 on the left not.i thought the amp on the left was bad so i took the rca of the...

Hello herb31,

It sounds like there is a difference in the signal levels on the inputs to the amps. You did not specify what the RCA's are connected to on the head unit side. If they are connected to a stereo pair of preamp outputs, you may be able to solve the problem by using only the channel with the higher signal and use an RCA "Y" adapter to split it to both amps. If they are connected to a dedicated subwoofer output on the head unit, make sure that the head unit is set for "subwoofer". Some less expensive head units, I know JVC in particular, has only 1 set of line outputs and requires you to go into their "PSM" (Preferred Setting Mode) to set the line output mode and if you select "subwoofer", then allows you to select the low pass frequency.

If you are converting speaker-level outputs through a "line out converter", check both the input and output levels.

Also, if you are splitting an output from the head unit, you still need to connect 2 RCA's to the amp inputs. The signal will be properly split if you use a 1-female to 2-male "Y" adapter. To feed the same signal to both amps, you would need 3 "Y" adapters. Feed the output signal to the female end of the first "Y", and plug the male ends into the other 2 "Y" adapters. Then, the 4 plugs you have left on the ends go into your amp inputs.

Hope this helps.

Apr 24, 2009 | Power Acoustik CLASS D SL-5500D Car Audio...

1 Answer

Soundstream300 amp how do I hook it up to my pioneer head unit

That depends on which wires you are referring to. High level inputs or low level (RCA) outputs? If you are thinking about trying to wire the amp up to your Pioneer direct, ie; running the power and ground off of the factory harness, think again, you'll fry your electrical system. You need to run a seperate power kit (8 gauge minimum; 4 gauge pref), then run RCA's from the line level outputs on the Pioneer. If you are planning to run a sub with the Soundstream then run your RCA's from the Pioneer's sub output. Let me know if I can help you any further.

Aug 17, 2008 | Soundstream EGA900D Car Audio Amplifier

1 Answer


RCA cables are the best way to get the audio from your head unit to the amp. If your head unit doesn't have RCA outputs, you might be able to use the speaker outputs of the head unit to connect to the "high power" or "high level" inputs of the amp, if the amp has such inputs (check your manual).

Mar 23, 2008 | Lightning Audio LA1.300.2 Car Audio...

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