Utility amp grounding and sheilding?

[tsharp]

I recently purchased a Pyle Pro PCA2 utility amp, i hooked it up to some cheap speakers in my living room and was impressed that there was no hum or hiss. i later set it up on my desk to use with my PC, but now of course there is a very noticeable hum whenever the amp is on. i'm sure it has a lot to do with my modem, wireless router, and LCD being very close to it. i want to know if grounding the amp (comes with 2 pin plug) by replacing the cord and adding a chassis ground would hurt or help the sound.

here's the amp http://www.amazon.com/Pyle-PCA2-40-W.../dp/B001P2VV50

[pacificblue]

Not likely. You can try the following.

- Connect amp and PC to the same outlet, i. e. use adjacent outlets on a power strip.
- Turn the power plugs around. You may find a combination where the hum becomes less. That worked for my PC amplifier.
- Move the signal and speaker cables around and separate them as good as you can form power cables and devices that have a transformer inside including the very amplifier.

[infinia]

Agree with pacific
My experience is the signal wires at the input are the source. Try moving the connectors to gain better contact or replace with HQ cables.

[tsharp]

thanks for the input. i moved the amp underneath my desk and i have it plugged into a different wall socket, i also found a better shielded RCA to 1/8 adapter. now its almost dead silent!

[infinia]

Good to hear you solved it!