Question about MTX RT202 Car Audio Amplifier

2 Answers

Feedback/maxing out speakers.....

Basically when i turn my stereo on it seems as if everthing is fine. at medium volume it sounds really blurry . and when i turn up the volume on either the headunit or the gain on the amp it starts to feedback and it eventually builds up untill the subs are maxed out. if the volume is completely down and i slowly turn the gain up it does this as well at about half way. i've tried moving the ground and replaced the rca cables and the speaker wire going to the subs. any help is GREatly apreciated !

Posted by on

2 Answers

Re: feedback/maxing out speakers..... - MTX RT202 Car Audio Amplifier Car Amplifiers

Its connected directly to the head unit

Posted on Aug 12, 2007

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 113 Answers
Re: feedback/maxing out speakers.....

Starting from amp,what is the rca connected directly to. headunit or adoption?

Posted on Aug 09, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

For a 12 inch 4 Ohm DVC with 1200 Watts Max/400 Watts Nominal what size amp should I be using?

The speaker info is telling you that a 400watt input is nominal or stable. and handle anything that can Peak up to 1200watt , the speaker can handle the 1200watt but not for long periods. Distortion will likely occur well before then anyway. On my home stereo, I have twin Marshalls which are 500 watt each going to JBL,s rated at 150 watt with 250 peak. The ratings are a bit different from manufacturer to manufacturer. Ive found the system is really powerful but there is very little to no distortion as the amp is not needed to be cranked up to get the volume I want. If you run an amp that is too big for the speakers, it will sound really loud for a while, then distortion happens then watch your speaker cones self destruct or the voice coils burn out. If you run an amp that is too small, you will need to turn it up more for the volume and then distortion sets in earlier, which is the biggest destroyer of any speaker.

May 26, 2015 | Car Amplifiers

1 Answer

Rockford Fosgate Power 1000 amplifier. (25 to life) When I turn it on there is almost no sound coming from speakers. I have to turn up the volume almost to max to hear something. But only very high...

turn or flip the LPF and sub sonic buttons to see if they will help.
there are other buttons called gain that you may have to turn to bring up the volume.
its very likely your eq buttons that you have to mess with to get it right. post up pics if you can.

Nov 02, 2013 | Rockford Fosgate Car Amplifiers

2 Answers

My Alpine MRP-M650 Amp is acting up. When I start the car, if the volume is at low, the subs don't work. But when I turn up the volume, they eventually kick in, then I can lower the volume. But when...

There are a lot of things that could cause this issue ...
1. Your amp requires more power than it gets when you start your car, and needs to charge up before it can work. If this is the case, you should be able to give your stereo about 5 minutes to warm up at low volume and it should come on. This happens a lot with amps with built-in capacitors (capacitors give you stunning, instant kick when working, but require a bunch of power to initialize). If you wire a bypass switch for the power to your amp and bass components, you can turn it on separate from the rest of the car and allow it to charge before you start your car (just be careful to turn it off when you are going to be away from your car for a while since this will allow your system to drain your battery).
2. Your amp might be set incorrectly for handling the system you are running. If your Ohms do not match up exactly (8 ohm speakers with a 4 ohm amp -- it's the "Impedance rating") then the system should not work at all, or should burn out the amp ... but with a jury-rigged system it can work. If this is the case, I recommend getting a new amp that matches your speakers.
3. Depending on the amp, there might be a volume-based cutoff that is working improperly. Turn on the car with the stereo at low volume. While the speakers are still not working, check to make sure that the amp has power, and seems to be functioning correctly. If everything seems like it's on the up and up, but the speakers are not working, try changing the volume-filter options on your amp.
4. I put this last because it seems like you know what you are doing with the system setup, but it is possible that you have a bad connection between the speakers and the amp, or between the stereo and the amp. There could be a loose connection somewhere (either inside the amp, between the amp and the speakers at the jack, or between the stereo and the amp at the jack). If this were the case, everything would look perfect from a visual inspection, but there could be a tiny space, or corrosion in a connection. Turning the stereo up to a high volume could then bridge this short circuit, and the electric force could magnetize the connection shut, allowing you to then turn the stereo down with the working connection. The best-case scenario here would be an external wiring issue, where you can clean any corrosion off the connections with an eraser, and reconnect everything tightly fixing the problem. The worst case would be a short WITHIN the amp, which would have to be repaired by someone with a lot of time and a circuit tester -- in which case you might be better off trading the amp in for a new one.

May 26, 2011 | Alpine MRP-M650 Car Audio Amplifier

2 Answers

Amp is connected to speakers but the volume coming out of the speakers is very very quiet. Speakers have been tested seperately and are known to work. Have turned the input sensitivity to max, this makes...

sounds like you need to turn up your gain and bass. while amp is on and your favourite music playing, turn up the diles on your amp until you get the sound you want one by one.

Feb 28, 2011 | Kenwood KAC-529S Car Audio Amplifier

3 Answers

Red Power Protector light

Hi, the only way i can see the amp resets the stereo is that power is dropping. The amp should have its own wires directly to power/battery so as to not affect anything else.

On the protect, try to disconnet all the speakers, make sure the power is OK. If it appears to work, the there could be a problem with speakers/cables. Try a different speaker to see if it works. If the problem continues with speakers off, a different speaker etc, then there is a problem with the amp. Hope that helps

Jul 21, 2009 | Sony XM-2100GTX Car Audio Amplifier

2 Answers

Mic feedback. I sing on a shure beta 58 mic, into a 350 watt peavey amp, into 2 - 200 watt peavey speakers. My band is loud, and I simply cannot get my mic loud enough for them to hear me, without constant...

It sounds as though you are pointing the peavey at the band in a practice situation? If so make sure that each speaker is at about 60 degree angle to either side of the back of the mike (you facing the speakers), most mics reject feedback when the the user is directly in front of a monitor, but Beta 58s' tend to feedback more in that situation. Alternatively (if it is a practice room situation), why not place the speakers behind the band at 60 degrees each and turn to face the band.

Mar 12, 2009 | Peavey AMPLIFIER, 1000 WPC, DDT, 8/4/2...

1 Answer

L or r speakers will not play when the volume is low

sounds like you have a wiring problem or the amp is bad. take it to a stereo shop.

Nov 16, 2008 | Eclipse (XA1000) Car Audio Amplifier

1 Answer

Amp went into protect, but front speakers sound distorted too

If the amp still goes into protect mode, the easiest thing to do is disconnect the RCA cables from the amp and see if still goes into protect mode (after turning off/on). If it does, the issue lies in the amp or the wiring to/from the amp (most likely case). Check to make sure no speaker wires came loose and touched +12V or ground (car body). From the sound of it, my guess is something internal to the amp died and will need repair.

Mar 22, 2008 | Car Amplifiers

3 Answers

Wiring diagram or schematic

make sure no of the speakers wires,inputs or antenna even cable is runnig parallel wite an electric cord or line.that is 90% reason 4 feedback(humming). Iif you have to cross wires do it in a intersecting way.perpendicully<if thats a word.rating please

Jan 31, 2008 | AudioBahn A2150HCT Car Audio Amplifier

Not finding what you are looking for?
MTX RT202 Car Audio Amplifier Logo

Related Topics:

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top MTX Car Amplifiers Experts


Level 3 Expert

57068 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Larry Spears
Larry Spears

Level 3 Expert

625 Answers

Are you a MTX Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides