I connected the ground power and remote to the amp and everything seemed to work fine. I left the rca's out for now to see if everything is ok with the noise level and such, of the amp. Connected the front speakers everything fine connected the rear speakers i get a high pitched constant sound coming out of the speaker.

Now trying everything i could i discoverd that when i have 3 speakers connected i didnt get any noise and it doesnt matter which position i connect them or wich one of the speakers. As long as i have three connected no noise put the fourth one in, noise!!

I tryed regrounding, jumping the remote directly off the feed and still the same high pitched sound that doesnt increase or decrease just a constant noise.

is my Amplifier bad what can it be im out of ideas.

i really need some help on this one.

 

Is it a hiss or something else? This is without the RCAs hooked up, right?

 

its not a hiss really but more like a buzzing high pitched noise and its always in one speaker. but that same speaker doesnt have to be connected in the same output to get that kind of a noise. as i said as long as i have 3 plugs in there no noise put all of them and there u go...

nothing is connected just power to the amp and speakers out. no signal whatsover... the headunit is off too but wouldnt matter anyways.

i just connected my kicker sx 900.4 same way and no noise, i even put the 3sixty to it and no noise, just a slight hiss from the noisefloor wich is normal since the stock amp is not that clean to begin with.

so to me it looks like the new alpine pdx 4.100 is faulty but its kind of suprising the way it is not working properly.... first time i experienced something like that...