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The hum therefore is a generated before it reaches the volume control. Check that all the connects are good, a bad earth will cause a hum. If the hum is in both channels it will be something that is common to both. Electrolytic Capacitors are there to take out hum, so suspect them first!
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Disconnect the input to the amp on the humming channel. If the hum still exists then there is probably a bias problem in the out put section. Check to see if there is a DC voltage on the speaker with no signal applied.
sounds like a right front wheel bearing. when you turn to the left it puts more load on the right bearing. when you turn to the right it puts more load on the left bearing. These are a bolt in style bearing and they are fairly easy to replace.
If you think you would like to give it a try let me know and I'll get you some instructions.
A hum in a car audio amplifier is a good sign of a bad ground. Double check your ground wire and make sure you have it connected to bare metal. If it has any paint or anything what so ever on it you need to grind the surface down to bare metal.
Electrolytic capacitors are good at causing hum. You could try replacing some of them, they are not expensive. Otherwise you might have damaged the left channel amp semiconducter, whatever that might be.
Turn down the second amplifier (which the speakers are connected to). This hum is the amplified 'noise' from the EQ and/or amplifier.
Try using a much higher graded second amp (eq 500w)
It is correct to connect the amp turn on wire to the amplifier remote. 5V is sufficient to turn most amplifiers on... It should be 12V optimally.
If the amplifier is not turning on with the ant. remote, the problem is with the amplifier.
you will want to turn your radio volume up till you hear distortion then trun it down slightly. then turn your amp up until you hear distortion then trun you amp down slightly.
Make sure that you are running the engine every time that the stereo is playing or you'll deplete your battery's voltage. Also, make sure your alternator can supply the amount of current necessary to produce that kind of power. Amps X Volts = Watts is the formula you use to calculate this demand.
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