20 Most Recent Legacy Audio American Legacy II LA490 Car Audio Amplifier Questions & Answers


sounds like output transistors proffesional repair time sorry

Legacy Audio... | Answered on Nov 20, 2011


yes, should be fine in series or parallel. it will run hotter under lower ohms but crank out more volume!

Legacy Audio... | Answered on Jan 28, 2011


9 times out of 10 if your amplifire is in protect mode and evrything externaly, like speakers, fuse, voltage, etc. checks out fine then
either you have shorted out output transistors or power mosfet transistors. Basicly that just about what happens with car amps.
It's easy enough to fix IF, IF you know what your doing. First you
need to check the output transistors with a digital volt meter on diode check, If they check out then check your power supply mosfet transistors. I can almost guarantee this is your problem. Very common. I buy non working amps all the time and repair them. Listen to pbabin also he has helped me out. Good luck

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

Legacy Audio... | Answered on Feb 12, 2009


start with a 50, may need to increase it if you are not using a large capacitor.
600 watts = 12x
x= 600 watts / 12 volts
x = 50 amps

Legacy Audio... | Answered on Dec 13, 2007


Hi,

Would need some more info my friend, as when was the last time that it worked.. & what changes have we made on it since it was bought ... post the same to me & in the mean while try these ...

1.) Look for an option DVD menu to turn this safety feature off for ... Go to Setup menu and perform Position

2.) Try checking the connection from your car battery to the audio device...

By the way how old is the player ..

Thanks !!




Legacy Audio Car... | Answered on Mar 28, 2009


You need to calibrate put a DVD in on the remote press stop,zoom, up, down screen should pop up touch the cross touch the cross at each corner u will see ok turn off and back on and try it

Car Audio &... | Answered on Jan 24, 2020


That image just shows that you have chosen Auxiliary Input, can't see the red dots. Looks like you just need to reconfigure it.

Car Audio &... | Answered on Jan 23, 2020


Tip & How-To about Watches

Changing Watch Batteries
Lots of posters ask "what is the battery in my (name of watch)" with a view to changing it yourself. This is a bad idea for many reasons. You don't have the tools or knowledge to remove a rotary screw on back, or the gasket sealant for a waterproof watch. Some fashion watches have 4 traditional screw and need professional grade jeweler screwdrivers. Also, there are about 20 batteries commonly used in watches, in various sizes and internal technology, Lithium Ion, Silver Oxide and Manganese Alkaline. If you buy them, you generally have to buy 10!

Don't sweat the details. Just take the watch to your local jeweler. They have all the batteries at hand and the tools to remove the back. It is done whilst you wait for $8 to $15!
Posted by Andrew... on Dec 31, 2018

Car Audio &... | Answered on Jan 21, 2020


There are lots of suggestions, specs and plans for loudspeaker enclosures available online with accompanying formulas for calculating sizes of boxes, ports, etc., but successful results tend to be achieved by experience as much as following plans and tuned port reflex enclosures are akin to the black arts - hifi purists would change the port size after a "bedding in" time for the enclosure and drive unit.

Your subs are rated at 300 rms so clearly you are overloading them at 350/400 and you should be aiming to max them at around 250 in a reflex cabinet. If you really must drive them so hard you really need to consider an infinite baffle as an alternative enclosure.

Car Audio &... | Answered on Jan 18, 2020

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