Question about Legacy Audio LA630 Car Audio Amplifier

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How do i fix the power level knob its grounding out or something, its cutting the Amp off at times... any idea?

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The power wire and the ground wire have to be the same gag.

Posted on Mar 31, 2011

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Posted on Jan 02, 2017

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It could be just a lead, check your lead heads and inserts are clean.
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Your sub amplifier is detecting an overdrive condition and reducing volume to prevent the output stage from burning up. When reduced volume doesn't work, output is cut completely for 10 minutes until things have cooled down.

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Make sure the ground plug is not cut off of power plug. Also, if the power switch moves in 2 directions, it is a ground reverse, meaning switch it the other way. If it doesn't, look for a ground reverse switch somewhere on the back.

Mar 05, 2013 | Music

1 Answer

Overheating & cutting out


First, check your ground, a bad ground can cause overheating. Also check your power connection to the amp. Also it could be something internal within your amp. Does the amp the overload protection light come on at all? Are you bridging any channels?The ohm load may be too low for your amp.

Jun 02, 2011 | Car Audio & Video

1 Answer

Everytime I cut it on. It cuts back off like there is something wrong with it


If you turn it on and it clicks right back off you may have a short. Make sure the wire panel does not have any straggler wires going from one connector to another. Also you may have a very weak fuse. Check the fuses in your amp and at the battery terminal. Make sure the power, ground and remote wires are solidly connected. Make sure that ground is tight. Is the deck shutting off at the same time your amplifier does? The remote wire off the deck powers that amp so if the deck is also cutting out the problem may be the deck and not the amp. If this is the case then run through the steps I listed above but with the deck as well.

Regards, Tony

Mar 24, 2011 | Sony XMGTX1852 Car Amp

1 Answer

My amp is working but everytime it cuts off and i got to cut off my car and cut it back on. Also when i have the car off and i have my radio on it stays on. But when i am driving like 1 or 2 mins it cuts...


Check your ground wire and make sure it is bolted down into a solid ground. Do not use a factory ground make your own. Every system that has subwoofers has a little blue wire called a remote wire. The deck sends a signal to the amp thru this wire letting it know it has been powered on. It could be that there is a short in this wire, either from the deck side (where the wires are connected) or it could be also be detiorated insulation on the wire. pretty inexpensive to replace. In my opinion it sounds like you have a shotty ground wire. If you don't have this grab yourself a nice foot of 4 guage wire at your local HI-Fi shop. This should fix your issue if not let me know and we will keep troubleshooting

May 20, 2010 | Lanzar MXA232 Car Audio Amplifier

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I have an xploid 760 same amp wit ha 800 watt sub. eb=verything should work fin. but the same prob when i turn up the valume the overcurrent kicks on


use a bigger ground wire for amp and protect mode will stop clipping and shutting amp off also make sure power wire and ground wires aren't the same size ground bigger .............if this doesn't help change settings on amp to lower power
easiest way to set amp is (turn the knobs on amp all down turn up your system to the level you listen to normally and then set the amp knobs for bass turn knob slow to set properly but i think the ground needs to be bigger and maybe moved to a new location
hope this helped

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1 Answer

Power LED lit, Servo LED lit as well, no output


check the power cables on the amp and the inputs.isome time when ground cable disconnect the lioghts will light up any way. depending on the way ur vehicle is ground ed .toyota chssis r usually posite un like the norm which is neg.rating please

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your amp its protect by releas of [powerout]one this releys is dead you mast chenche

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