Where can I buy a VIDEO ISOLATION TRANSFORMER?

[Denvers Dawgs]

My cable just recently started to make my home theater subwoofer hum annoyingly loud. I have 2 options

1. buy an $90 surge protector with cable in/out (Already tried one from a friend, fixed it 100%)

2. find one of these VIDEO ISOLATION TRANSFORMER in the US.

The problem with the one that I have linked to is that it costs $10, but it costs almost $9 to ship and I'm not totally positive this will fix my problem. So I would rather spend as little on this as possible, in case it is no help.

[Doramius]

I'd go with the surge protector. Sure it's cost is larger, but you know it works. It also can protect other equipment hooked to it. An it probably also has an attached equipment replacement warranty.

Check eBay too.

If you're worried about cost, the item you're looking at looks like it should work.

[JSB1]

there are some more tips to try first here:
http://ezinearticles.com/?Eliminating-that-Terrible-Hum-From-Your-Home-Theater-Speakers&id=131193

The first step is find out where it is coming from. Disconnect your source and display equipment from your receiver or surround sound processor. If the noise stops, connect them back to the receiver or processor on at a time until the noise returns. When the hum comes back, you found where the noise is entering your system. Note that if you are connecting remote equipment, such as running the signal from your theater room DVD player to the TV in the bedroom, your chances to pick up noise increase dramatically. With such long runs, noise can be induced into the long cable runs from adjacent electrical wiring. It is also easy to create a ground loop, because the equipment is plugged into two different, widely separated outlets, on different electrical circuits.

JSB

[Denvers Dawgs]

Have already determined that it is the cable causing the hum. Had Comcast techs come out twice, keep telling me it's the tv. So I unhooked everything from the "broken" tv and plugged them into my bedroom tv (whcih I brought into the living room) and the sound still happened so like I told the techs twice, it's not the tv. When I unhook the cable from the tv the humming stops. That's why I am looking for one of those VITs