Fizz - Interference

[Condi]

Before we start, please note that I am not an audiophile. I like music, and my stereo, but are not anal about it too much.


However, having started to use it a bit more, Ive noticed a bit of interference when using the TV outputs. You can hear a constant hiss when the TV is on. It could be the TV, or it could be something else. Problem is that there are a fk load of electronic things in the corner. Off the top of my head there is - router, BT box, TV, Bluetooth receiver, amp and subwoofer all shoved into one corner. That means a lot of wires, and a lot of potential interference. Is there an easy way to check if the TV outputs are not very clear, or if its picking up something from one of the many power chords or wires? If not, how can I shield my wires?

System is a Toshiba TV (pretty old I guess) into a Cambridge A5 amp, Cambridge S50 speakers and S80 (?) sub. Wires are cheap and cheerful.

[megaphone]

First thing I would turn off is any WiFi router, I've had interferance from them when close to TVs.

[varsas]

You can get 'fizz' from poorly earthered electrics, as well as poorly insulated ones. You then have a voltage difference between devices, which is transmitted in the leads you have connecting them. Better leads might help. Any chance you can move the amp onto a different plug, maybe on it's own multi-way adaptor, see if that sorts it? Ideally you want it on a different circuit breaker/fuse, and unplug everything else while you test.

I once had a cheap PC speaker ssytem that could pick up AM radio, even when it was switched off...only way to stop it was to unplug it from the wall.

Edited by varsas on Wednesday 19th August 19:35

[Condi]

I will go through and check out the suggestions. Noticed that it wasnt just the TV though - must be something else causing it as happened when selecting a different input.