Speakers making a hissing noise?

Question:
I have a 4000 watt class D monoblock amp by Pyle and when i hook my two 18's into it i get a very annoying hiss coming from the subs, I know that it has nothing to do with the rca and power cable because when i unhook the cable the noise is still there. I have 0 gauge ground and power cables and my ground wire is bolted to the chassis under the rear seat. Does anyone know what else could be the problem?

Answers:

Sound cuts out when truck first starts?

What you don't say is what radio is feeding your amp. Lower end radios have noisier preamplifiers and that noise is passed along to your big amp and out your speakers.

Avital security system?

Also Class D amplifiers are inherently noisier and have more distortion because of the way they work, and they require filters to remove the noise.

I want to install 17" monitor screen , a DVD player and PS2 on my truck . but I dint have an idea how to start

A Class B or Class AB amplifier is better for higher power audio if clarity is what you're after.

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Will this sub work with my amp ?

You've got a leakly output transistor or capacitor in the output of the amp. It may be in the filter of the power supply.

What does the loud noise damage in the ear?

Friend, be careful, your hearing is worth a lot more than being cool with that pumped audio system. 4,000 watts can even damage your internal organs.

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My Chevy came with XM satellite radio but I rather have Sirius can it play using the XM receiver ?

that hiss in your speakers, is due to an unclean amplifier out put.
All amps have hiss. It is just,that good ones, have almost none at all

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