Re: Loud pop comes from stereo speakers when light switch turned on...

In article <3f14fce3-e10e-4b6e-8c29-76fe198bfc2f@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Paul <comiconline@xxxxxxxxx> wrote:
I live in an apartment in Washington, DC. I've been here for 9 years,
and never had this problem until a couple of months ago. Often times,
when i turn on/off a light switch or the vacuum, i will hear a loud
"POP" eminate from my home theater and/or computer speakers. It does
not happen every time i flip a switch. Only about half of the time. I
also notice it when maintenance plugs in their vacuum cleaner in the
hallway (the a/c outlet is right outside my door). Once the
appliance has been turned on, i notice no buzzing or interference.
It's only the initial turn-on/off that makes the speakers pop.

1. Can this problem damage my equipment in any way (speakers, amp,
computer)?
2. Is there anything i can do about it?

Since i live in an apartment, i can't go playing with their wiring. I
would imagine the only thing i can do is some sort of stop-gap
measure. I have surge protectors in use on all my computer & home
theater equipment. What about line conditioners, or voltage
stabilizers? I know Monster Cables make things that cost up to $1000
or more for "cleaning dirty power" (whatever that means).

I know a good deal about home theater stuff, but not the greatest
knowledge about electrical basics. So, please be gentle. But any
advice or counsel would be greatly appreciated. Thanks.

One thing, if any of your equipment uses ground, and especially if
you have a cable hooked up, ground noise can develop. An RFI filter
does not filter ground usually. I would not recommend bypassing a 3
prong plug, but if the cable is not grounded properly, and isolator
can help regardless.

greg
.

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