Question about Verge VGA300M Car Audio Amplifier

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No sound I installed a new stereo in my truck to an existing amp and now when I turn the volume up the speakers stop working, even the ones not hooked up to the amp.

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Re: no sound

You may have a blown speaker...many cd decks will shut off their audio circuits when a speaker is blown to protect from shorting out. Go to the back of the deck and try disconnecting speakers one by one. You will have to turn the deck off and back on each time. Hope this helps!

Posted on Aug 06, 2007

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The car had existing cables in it and i tried hooking up the amp to a sub i know works. The amp doesn't light up or anything and the sub doesnt put sound. What's wrong?

Those existing cables are suspect. Start by getting power to your amp, then connect other wires, regardless of color code, to the sub. Beware of wires that look good but really are shorted somewhere. You may have to label each wire as you go along to identify its real function. You may even have to run some new wires to replace existing ones.

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I have 2 Mtx PA speakers with Brand new Stereo cables plugged into the back of them then the other end is going to my amp. But When i turn on my dj program and try to test them It is extremely quiet. Even...

This is a car stereo amp or DJ Amps and speaker set up? I think your question is in the wrong area. It sounds like you have something switched in the wrong position like monitor or record possibly using the wrong outputs or incorrectly figured signal routing. Possibly check the amp out signal selector on the mixing board? This question could be answered much better by a DJ in one of the many problem solving forums they have at other web sites. I have visited a number of them researching equipment I was selling. Just Google DJ Mixers forums.

Aug 16, 2013 | Car Amplifiers

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So i have installed my amp, epicenter, all wiring is done, hace great ground.. But once i turn my car on to sound check everything starts fine but after turning up the volume a bit.. My amo goes into...

It sounds like you have your gain to high. best way to solve this is by turning the gain way down to - or lowest number , then turn everything on and upto the volume you desire, then slowly up the gain. also avoid using bass boost, I agree it sounds great but it puts strain on the amp and shortens life in the amp. with the bass boost off, you can adjust others (not the gain) to get bass.

Hope this helps

Jan 26, 2013 | 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.

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1 Answer

My amp powers on but i get no sound and i have everything hooked up properly, what is wrong with it?

Have you tried your subs on another amp???? Or hook up a small speaker at low volume to the amp and see if it plays....If it doesnt, then the problem lies within your speaker output on your amp or your line out (rcas) on your stereo

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there is a loose piece inside my 10" cozmik series. how do i get it out?

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Hello lizskates814,

You can use either the high level (speaker) or the low-level (RCA's) inputs to the amp, but not both. Choose whichever one sounds the best or is more convenient to install and leave the other disconnected.

Hope this helps.

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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.

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Kenwood kac-848

You have blown outputs , faulty channels. What kind of amp do u have and what were u running to it? Most likely a bad amp, u might need a new one.

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1 Answer

No sound coming out

I often troubleshoot these issues via a stereo head set, modify the leads so you can "Touch" them onto the Speakers Output Terminals, connect the "Shields" together, thats "Earth" and the other Two, are Left & Right... with the Amp's volume turned to about 25% volume, connect up the Earth wires to the Chassis with a clip, under a srew etc, just make good contact... then touch the Left & right wires onto the output, ya should hear sound... if not most probably the Output device(s) may have gone faulty.

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