Question about Legacy Audio LA1030 Car Audio Amplifier

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Distorted Bass hi, i have a lagacy LA1030 1000w amp and all was good till about yesterday i just turned it on and it just didnt sound the same, the bass is very distorted it almost sounds as if i were very under powered, but it only pshing one 12" and it was working fine

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Check the specs on the required ohms for the speakers. If it calls for 8 ohms and your speaker is 4, then you are pulling twice the normal current and this has blown an output transistor.

Posted on Mar 02, 2008

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Amp shuts off.


check the connection of power connection and the remote connection tone amp,you can check also you inside by using your hand ,turn on the amp and wiggle it the power connection parts.

Jun 15, 2013 | Jl Audio 500/1 Car Audio Amplifier

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How to tune properly


make sure your speakers are wired to the amp with correct ohm load, turn gain, bass boost all the way down on amp, zero out your equilizer on the cd player and turn it all the way down then start raising volume on cd player., when u can start hearing music thru the subwoofers adjust the cd player volume till the sound from your subs is at its peak without any distortion. then start raising the gain on your amp till you are happy with the sound. It gives you the optimal signal strength coming from the cd player and the smoothest sound.

Jan 13, 2011 | Performance Teknique ICBM-774 Car Audio...

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I have a 1800 watt amp but the red light is on but it dose sound like the bass works but not it its prime


the red light is for power in protect mode it should be orange and it will not emmit sound if you think you should have better sounding bass or more bass you can try to play with the gains on the amp or possibly if you have the negative or positive hooked up wrong from a speaker to the amp this will cause the bass to be lower and somewhat distorted double check your positive and negative wires from the speaker to the amp and make sure they are correct

Feb 28, 2010 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

KAC9103d been running great for a year, factory refurb. for a month been losing sub output. checked all connections again, everything good. Turned on went driving 15 minutes later lost bass ckd again red...


Could be that you have a partially roasted(blown) coil on one of your subs which will function- but will keep tripping your amp.You can check that out just by using a different set of subs to listen to and by the process of elimination if the problem goes away then you know where the problem is at.Also check your gains you might be riding the gain a little high which causes distortion which causes heat(FAST) which will cause the amp to shut down completely or some amps will decrease output in a programmed attempt to save itself.turn the bass boost down to half if you even use it at all- that too can cause massive distortion in the amp itself,meaning only that if you have the bass boost on your deck turned up and then you turn the boost up on your amp the sound signal is then WAYYY distorted which will cause a thermal shutdown too. Last thing is to make sure that your subs arent running below 2 ohms because i believe that particular amp is designed to put out about 900 watts at 2 ohms.good luck

Jan 22, 2010 | Kenwood KAC-9103D Car Audio Amplifier

1 Answer

What settings should i have my 760 watt pioneer amp set at for amp gain and bass boost in order to have the best sounding hit from the subs?


they want you to "level match" the amps head units voltage from the rcas .this is best done with the radio at 3/4 volume , turning the amps gain dial till music distorts then backing off till it sound s clear .if theres other units in the signal chain (eq,x overs, ) see if they too have gain /volume controls . it goes down the line if thats the case . .

Nov 23, 2009 | Pioneer Car Audio & Video

1 Answer

Amplifiers GT Series GT5-A604 ........explain settings


the amp probably has a x-over knob, a bass boost knob, and an eq knob. the eq is probably an internal crossover switch that will take the output from either high range (tweeters) or full range (6x9s) or low pass (subs) leave it on low pass. the bass boost however, will add distortion if turned up too high. its not noticable in the car, actually it sounds louder in the car but if you open the trunk and listen, you can tell its distorted bass and actually frying your speakers. the x-over knob is used to tune the frequency at which the amp stops pushing out bass tones. if you like rock music loud, turn it up higher, if you like low deep rap bass, turn it lower. keeping it too high might give you bad sound from either type though. ALSO THE GAIN OR LEVEL.IT IS NOT TO MAKE YOUR SUBS LOUDER IT WILL BLOW THEM .the gain is used to set your amp to your head unit which there is a procedure to do it.

Jun 15, 2009 | JBL GT5A604E 4-way Car 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 Audio & Video

1 Answer

Legacy amp 1200 watts


i have had the exact same problem with the exact same lagacy amp that you have posted, put your ground in a different spot or try double grounds in two different spots this should solve your problem here. good luck

Oct 06, 2006 | Legacy Audio LA770 Car Audio Amplifier

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