Question about American Pro VS-2043 Car Audio Amplifier

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Check your speaker connections and the try to power the unit on again. I fear that you may have damaged the power amplifier MOSFETs on the output stage. This is what this sounds like. I would first try to see if audio is going into the unit by using an oscilloscope and taking a reading at the input of the amplifier. If audio is preset I would take the unit to a shop since there are no user serviceable parts inside of this device. Look for a shop that will give you a free estimate. I do feel that you have internal damage to that device.

Posted on Sep 03, 2007

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The Ground wire is hooked up right but the red light wont go off and stay green so the amp will work. It is very frusterating all the cables are the right size its is a 1000 watt amp. I have two 500 watt...

Sounds to me like the amp is going into protection mode. Try placing one sub on the amp with very little gain. One of the biggest reason why this happens is because the subwoofers are wired wrong. What is the brand and model number for your amp?

Apr 14, 2011 | Car Amplifiers

1 Answer

My mtx thunder 421d I just got has the red light staying on all the time, I have hooked up a rca converter and the amp wont play my sub, is that light supposed to be red all the time.

The LED should be red. If you are not getting power to the sub, make sure the speakers are connected properly to the amp. Also make sure that the gain control is turned up. If it is all the way down, you will not hear anything from the sub(s). If none of that works, it is possible that you have a blown sub. If you smell a burnt smell near the speaker magnet, there is damage to the voice coil in the sub.

Feb 25, 2011 | MTX Thunder 421D Car Audio Amplifier

1 Answer

I just got a sony xplod 1000 watt amp i got everything hooked up and when i turned the key the power light chaned from green to red. i check over the amp again and again, i cant find any thing wrong........

Try disconecting all speakers from the amp, turn it on after and if it stays on red it sounds like it had kicked the bucket. if it stays green start from their and check all of your wires for shorts (speaker wires) again. hope this helps...

May 08, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Sub not working and red light on amp stays on?

the amp is under to much pressure get a bigger 1

Nov 18, 2009 | MTX Thunder 421D Car Audio Amplifier

2 Answers

Red Light

that means you probably have a shorted speaker wire, a bad speaker or the amp itself is bad, try disconnecting the speakers one at a time and see if it turns on or not. if the red light stays on with no speakers hooked up it means the amp is bad

May 30, 2009 | Kenwood KAC-7252 Car Audio Amplifier

2 Answers

My amp stays in protection mode

Does it go into protect in the vehicle if you disconnect the speaker wires from the speaker terminals of the amp?

Nov 29, 2008 | Sony XM-2002GTR Car Audio Amplifier

4 Answers

I have a dub 4001 amp

Take it step wise.

Unplug the inputs and outputs from the amp (be sure to mark the wires so you can hook them back up), leaving only the ground, +12, and remote wire hooked up. Now, turn it on. If the amp light goes red, the amp is broken. If it goes green, turn if off, plug in the speakers, then turn it on. if it's red, its a speaker problem, if green, do the same with the inputs, and you'll have your answer.

Jan 22, 2008 | AudioBahn DUB Mag Audio DUB4001 Car Audio...

1 Answer

Concept CC-2502 Car Audio Amplifier

The amps are probably going into protection mode. The wires are most likely not hooked up correctly. Make sure you have a good ground, good power source, and the remote wire is run correctly. Also make sure the speaker output wires aren't touching each other, and you have the correct ohm load for the amp. What kind of speakers/subs are hooked up and how are they wired?

Sep 20, 2007 | Concept CC-2502 Car Audio Amplifier

2 Answers

Kenwood kac 859 amp

hi, note that if you are not using the proper gauge b+ and gnd cable with this amp then the current available at the amp wont be sufficint to keep amp on. also try using this amp while vehicle is idling. if this doesnt work then disconnect all spks from amp and check if red lite stops flashing. if it doesnt stop flashing then amp has internal fault. if lite stays on brite then proceed to check each spk load impedance, then reconnect each spk individually. the minute red lite starts flashing it will give you a clue that the channel or spk load is faulty. cheers

Jul 27, 2007 | Kenwood KAC-859 Car Audio Amplifier

1 Answer

Audiobahn A2300HCt wont work

you might not have enough power pushing the amp.... I have two batteries and two caps running

Apr 02, 2007 | AudioBahn A2300HCT Car Audio Amplifier

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