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American legacy II LA690 amp

I want to know if there is any way you can bypass the overhaul (green light:power, red light:overhaul) because when ever i bridge the amp it shuts off and i don't want it to I ve got everything hooked up good and the protect light still wont turn off.

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MOST LIKELY THE AMP IS BLOWN TRY TO CONNECT ONE SPEAKER AT ONCE TO SEE IF THE IS SOUND IF THERE IS YOU HAVE THE WRONG OHM LOAD

Posted on May 13, 2008

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Crainemy la690 amp is mounted between 2 15" BOSS speakers in a custom built box. it is hooked up with 8 guage wire system and has a 30W fuse. it is overheating really bad and don't know why? do you...


You need to look at your wiring of the speakers and the Ohm rating on your speakers.
Below are the specs of the amp. You have the Tri-Way amp and the switch that controls
which way it configures it's output is critical. If you are powering just 2 speakers you set the
the Tri-Way to bridge only. Problem is, I cant find a manual. Legacy's site ( Manual Coming Soon.I say call them and ask for a manual to be emailed to you or mailed.

Legacy Car Audio Inc.
1600 63rd Street
Brooklyn N.Y. 11204
Phone (718) 535-1800
Toll Free 1-800-444-5671

You can also contact us by email For Support support@legacycaraudio.com


  • American Legacy II Series
  • 1000W High Performance 4 Channel Bridgeable Amplifier
  • Tri-Way Output Configuration:
    • 250W x 4 Channel Power Output
    • 500W x 2 Bridged Power Output
    • 250W x 2 Channel (Front) + 500W x 1 Channel (Rear)
  • 2 Ohm Stereo Stable
  • Mar 19, 2011 | Legacy Audio American Legacy II LA690 Car...

    1 Answer

    I need to know the size of external fuses for a american legacy amp 2000 watt 2 channel 1990


    25 to 30 amp fuses will work great, anything lower could possibly blow a fuse when a good bass note hits even if there is nothing wrong with the amp. Hope this helps.

    Jul 09, 2010 | Legacy - American II: 2 Channel 2000W...

    1 Answer

    Amp problem


    Have you checked the fuses on the amp?

    Have you confirmed that you have both B+ and remote voltage at the amp?'

    When measuring the voltage, place the black meter probe on the ground terminal of the amp.

    Sep 17, 2008 | Legacy Audio American Legacy II LA690 Car...

    2 Answers

    Amp shutting off going into protection mode


    Check this out: http://www.techlore.com/article/14696/

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

    2 Answers

    American legacy II LA690 amp


    it's shutting off for a reason. What speakers are you trying to run? Do you know what impedance they are wired for? Where is the gain set? When bridged that amp is only stable at 4 ohms mono and will/should shut down at impedances lower than that.

    Mar 22, 2006 | Legacy Audio American Legacy II LA690 Car...

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