Question about MTX RT202 Car Audio Amplifier

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Car audio I'm trying to hook up my amp and sub in my 99 toyota tacoma. i still have stock speakers in it so i wasnt sure if i should hook up my amp (mtx rt202) to my speakers, all i really wanted it for was my sub. Anyway, I got it all hooked up and everything, but when i turn on the vehicle, the light on the amp turns on (red) and music plays sounding like normal through the speakers, but not the sub. it doesnt sound any different so i am assuming none of it is working. i have a kicker sub. and the sub and amp both work fine, I just took them out of my friends car.

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Re: Car audio

Hi, your amp seems to be getting power but the cables might be wrong so it's not getting enough power. the light on the amp should be green if everything is going well. are you sure the cables are suitable for your amp?

Posted on Sep 11, 2007

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My mrp m650 alpine amp power light is on but no sound. it works if i hook it to other vehicles but not in mine.

Check your speakers and speaker wires to make sure you have no shorts or grounds. Not knowing what vehicle you are putting the amp in, there is also a possibility that there may be a stock amp in the vehicle. If this is the case, you may have to rewire the speakers and bypass the stock amp.

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Hooked up a new amp but nothing comes out of the speakers, ground remote and power are al hooked up correctly, what could it be.i tried a couple of subs on it to make sure it just wasnt the sub, but...

Did you check your RCA's? I've done it a million times. I've forgotten to hook them up or I hooked them up on a amp that had a preamp output...Hope this helps

Apr 02, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Amp burned out but fuses still good?

this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....

Dec 05, 2009 | MA Audio M1900XE Car Amp

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

2 Answers

Sony xplode 1000w amp has green light puts out no power to subs

may haveto turn sub on through the stereo itself if rca cables are good.

Jan 08, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Monoblock amp with DVC subs

is the amp 2 ohm stable, and are the speakers 4 ohms apiece? ohmage is indicated by a number such as 4 followed by the greek letter "omega"

if the amp is 2 ohm stable, and both speakers are 4 ohms apiece, then yes you can hook up both, one to each terminal set

Nov 27, 2008 | Car Amplifiers

1 Answer

Hooking my amp up

Sounds like it should be an easy task (fitting the sub), but you will have to make sure that the JL 8" woofer has at least 1" to 1.5" in front of it to enable the sub cone to move freely (without obstruction). JL also offers a range of "ready made" sub enclosures on thier website (including kits for Tacomas), which could give you a good idea on mounting options.

The amp and speakers came out of a boat? That should be no problem if you plan to install these components into a car. Some companies (eg: JL Audio) have specific models which enable the use of thier products in marine environments, having components less susceptible to corrosion, U.V. damage and moisture ingress than thier equivalent car audio products.

Your JL amplifier part number E6440M has "M" added to the end of it's product name denoting it is intended for marine use, however you can use the same amplifier in a car without any problems at all. The power voltages will be the same, and the signal inputs are designed exactly the same. The only difference is that the marine version will have the added benefit of less corrosion problems :)

Just to make sure that the speakers aren't damaged (from corrosion) before fittment, check the motor and magnet basket assemblies (visually) for discoloration (particularly white salty residue).. These discolorations and residues should be removed as much as possible before fittment to a car environment, so as not to cause corrosion problems to your car later on down the track.

Oct 29, 2008 | Jl Audio E6450 Car Audio Amplifier

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I bought a 500/1 jl audio amp and also a w7 10 sub

if its cutting off and right back on then check your ground and your power wire makes sure both are connected good and none of your fuse's are blown, either that or you got a wire hooked up backwards in the sub.. but my guess is that the sub is hooked up wrong... that sub should be hooked up in a series or in parallel,

ok if your running just one speaker, it should be hooked up like this and 2 speakers are a different way...

this is parallel :pos to pos , neg to neg, then one wire coming from pos on sub to pos on amp then neg on sub to neg on amp but bridge the amp on your amp should be 2 pos and 2 neg in two different channels take the pos off the sub into the pos on 1 channel and then the neg from sub to the neg on the other channel,

this is series : on the sub it will go pos to neg then the other neg and pos will go to the amp, but make sure the pos and neg r on different sides of the sub, dont hook them both to the same coil

if your need more help give me your email and ill send you a pic of how to do it...

Aug 12, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Hooking the mra-f350 to my highs

You will only need to connect the door speakers to the MRA-F350. In short, the connections will be as follows:

Deck---->MRA-F350 amp---->Door speakers
...................................\---->Sub amp---->Sub(s)

Just make sure you use the optical digital output of the deck to connect to the optical digital input of the MRA-F350 amp, not the RCA preamp connections.

Mar 13, 2008 | Alpine MRA-F350 Car Audio Amplifier

1 Answer

Low amp output

Make sure the BOSS isn't in "Protected" mode (Red led lit) and connect the speakers properly (check the connections if they are in "bridged" mode).
Also, make sure you set the cross-over, bass boost setting, bass volume control and the bridge mode according to the speakers you are connecting. Check the input level too.
The BOSS amplifiers are of very poor quality and it can be easily broken. Maybe yours is broken.

Feb 15, 2008 | Jl Audio E2150 Car Audio Amplifier

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