Question about Legacy LA938 Car Audio Amplifier

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It does not turn on

My bazooka amp stopped working so i got this amp at a pawn shop (i know first mistake unless i can fix it) The power on the amp will not come on at all tried all wiring problems but could not one.

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  • joefaygo May 28, 2009

    i think that the person before me messed with the amp i have a good hot and ground wire dont know much about what the internal fuse is but the outside fuses are both good. It looks like someone put a kind of liquid rubber on the big coil in the middle that the coil is starting to crack on and my amp is the LA2070 not what it shows it being

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  • 72 Answers

Find and check the internal fuse....make sure you have a constant 12v+ (big red wire) when the ign. is OFF,and a switched 12v+, and a GOOD ground. It should make a clicking noise as it powers up.....if not, it's a boat anchor......sorry.

Posted on May 28, 2009

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Posted on Jan 02, 2017

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Bt8250d is cutting out


Loose connection or your power cable and earth cable to your amp are not a heavy enough gauge.

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if you turned it on without speakers hooked to it you may have blown the speaker output amps or if the end of the amp remote wire touched a ground you may have burned a trace on the board did you here it play at the pawn shop? or did it just light up? sometimes the people at the pawn shop think if the unit lights up it is working and sometimes they check them is just hook power to them without speakers if so this can blow the speaker output I would take it back to the pawn shop

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How to i find out whats wrong with my bazooka tube i tried to hook it up to a car battery and car stereo out side but wont work ???


follow this steps and fix it. GOd bless you

  • Verify that the amplifier is turning on by looking to see that it is lit up.

  • 2
    Use a voltmeter to verify your power supply is a good 12 volts by touching the ground lead to you amplifier's ground screw and the positive one to the amplifier's constant power supply screw. Also verify that you have 12 volts coming from the remote lead wire which is usually a thin blue wire between the ground and constant 12 volt supply.

  • 3
    Look for the "thermal overload" light. It is usually a red LED on the side of the amp. If the amp feels really warm and this light is lit, the amp has probably overheated from being tuned wrong or turned up too loud and shut itself down to cool off.

  • 4
    Check the fuses on the amplifier. These can blow with extended use or during heavy bursts of use.

  • 5
    Make sure the "Gain" and other volume controls are turned up.

  • 6
    Confirm that the signal wire is still attached to the amplifier and has not come disconnected by vibrations in the car. Also check that the wires running out of the amp to the speakers are still attached to the amp.

Oct 27, 2013 | Car Audio & Video

1 Answer

No Power


It appears that there may be an open trace inside the amp. This assumes that the ground connection between the amplifier and the vehicle is intact.

Don't allow the RCAs to contact anything other than the RCA jacks of the amp. Some head units are easily damaged when the RCA shield contacts a power source.

The amplifier will need to be repaired. It's a simple repair and shouldn't be expensive.

Let me know if you have any other questions.

Aug 25, 2008 | Bazooka EL260 Car Audio Amplifier

1 Answer

ELA 500.I


While I don't have any first-hand experience with either Bazooka amps or Memphis subs, this review pretty much says what I initial thoughts were. The amp will do the job without much fuss, so it mainly depends on whether you can get it for a good price.
BUT........
There could be a issue with your sub. According to Memphis, your sub (assuming it's the single voice coil version) is only good for about 250W RMS (let's ignore peak power for now). The ELA500.1, on the other hand, puts out 375W RMS at 4 ohms. You could very easily overpower your sub with that amp.

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