Question about Legacy Audio Blue Diamond LA1880 Car Audio Amplifier

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Legacy amp in protect mode

Hya i have a leagcy la 798 wich a live wire hit the speaker out put then wnt into protect made a chip had blown so i replaced it but still in proctect plz can sum 1 help !!!!!!!!!!

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Re: legacy amp in protect mode

What was the part number on the transistor you replaced?

Posted on Dec 15, 2007

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Kenwood kac-6295 shuts off then turns back on at high volumes

Did you wire the speakers in series or parallel? 4 ohm speakers in parallel actually come out to equal 2 ohms wich most amps would see as a short causing protection issues. 4 ohm speakers in series equals 8 ohms which should be fine for your amp. been there : expert-tech / SAM

Mar 27, 2012 | Car Amplifiers

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I have a Legacy Predator 2000 watt amp with 2 12'' Kicker speakers. It has been in my car for about a year now, and it recently just stopped working. I have the green light to the amp, im not sure about...

If you have checked your ground, live, remote and RCA's, The problem may lie with your kicker speakers.
There may be a loose wire connection on the speaker terminals (hense no sound).
Check the terminals at the speaker (+) and (-) then check the speaker wires to your amp inputs.
Usually if there is a fault with any wires linked to your amp, the amp goes into protect mode.
If your amp is not going into protect mode, try linking a different speaker to each terminal on your amp (left) then (right). If you get sound through a different speaker, more than likey your speaker wire to your kickers has came loose (due to vibrations) or there is a break in your speaker wire.

Hope this helps. If any more info is needed I'd be happy to help more. Please rate if helpful

Mar 18, 2011 | Car Amplifiers

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I have a punch p850.4 amp that goes into protect mode as soon as its powered up , have checked and double checked all connections to make sure its all hooked right . even downloaded the pdf for the amp .

I have exactly the same problem, try a different speaker wire from your sub terminal to your amp terminal, if no luck you may have a loose connection on the wires on your sub, due to vibrations etc they can sometimes come loose, but very rare. worth checking though. 1 loose connection can make the amp go into protection mode. If all of these are fine, start from the beginning, ( I have tried this and i think its my speaker wire shorted out) 1st dissconnect all wires from amp. Then connect ground first, then your live. then power up amp, it it works andd not in protect mode your earth and live are fine, then connect your remote, then test, then speaker wire , then test, that way you can rule out bad connections and find any fault.

Mar 03, 2011 | Rockford Fosgate Punch P850.4 Car Amp

2 Answers

Amp in power protect

Protection Circuit is bad. It needs to be serviced. If all speaker wires are disconnected and it's still in protection, it's got a problem. Hope this helps

Aug 08, 2009 | Sony Xplod XM-554ZR Car Audio Amplifier

2 Answers

Lanzar 800 watt amp protect mode stays on

protect mode usaully means that something has disrupted the power of feed lines to the subwoofer/speakers possibly fuse is blown in amp or amp is blown in which we hope not. see if you have a warrenty if blown and send back or bring it to where you purchased it from.

Aug 01, 2009 | Lanzar VIBE266 Car Audio Amplifier

2 Answers

My amp automatically goes into protect mode

There are 4 reasons an amplifier tries to protect itself.

Overheating - thermal shutdown.

Over Impedence - The subwoofers installed are not configured into a load the amplifier can handle.

Output is grounded - a positive wire strand may be touching the ground terminal - a wire may be shorted, or a speaker voicecoil is blown.

Intennal problem - Output on amplifier blown, or some other component has failed.

Check your wiring to the amplifier again - if all is good - disconnect the speakers and try to power on. If the amplifier turns on normally - test the speakers for blown coils.

If the amplifier still goes into protect mode - the problem is internal and needs professional repair.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

May 06, 2009 | AudioBahn A2301 2-Channel Class A/B Mosfet...

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Amp not working correctly goes into protection

Disconnect the speaker wires from the amplifier and see if it still goes into protection mode. If it still goes into protect with the speakers disconnected, there's a problem with the amp; if not, you may have a blown speaker or a shorted speaker wire.

Feb 22, 2007 | Legacy LA2098 Car Audio Amplifier

1 Answer

Amp not working

well it sound like you most likely damaged the audio output transistors. take a multimeter & test the outputs. remember they work in pairs so if you find 1 replace the one next to it also. in the amp you will find many transistors, the o/p transistors are the bigger ones.the transistors will be stamped with a part number, typically add "2S" in front if you try to find the parts yourself. good luck.

Dec 19, 2006 | Legacy LA498 Car Audio Amplifier

2 Answers

Amp shutting off going into protection mode

Check this out:

Aug 14, 2006 | Legacy Audio American Legacy II LA690 Car...

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