I am currently using a Sony freeview box and a dvd player, as well as an Xbox and VCR.

I also use a Yamaha 5.1 AV AMP for switching both the audio and video. Unfortunately it only supports composite and component video switching which means I have to use composite leads.

Reading around I know that S-Video signals are better than composite but not as good as RGB.

So what I would like to know is

1. Could i convert the svideo signal from a SCART lead to a two phono leads and back again, then use 2 of the 3 phono connections used for component connectors?

2. Would the picture quality be improved?

3. Would anything blow up with regards to different voltages, given that all the amp is doing is just switching a signal, does it matter what that signal is?

Why not just connect RGB to the Component inputs? There are plenty of SCART to RGB/phono leads about. But few if any SCART to S-Video leads that don't have a mini-din plug for the S-Video.

However the VCR is unlikely to have anything other than Composite video out. Very few have S-Video and even fewer have RGB. So you may be stuck with Composite for that which could put a spanner in the works when it comes to hooking everything up and passing the video on to your TV.

So you could convert S-Video to two phonos, but you would more than likely have to make your own leads up. There would be an improvement in picture quality, though whether it is enough to justify the hassle might be debatable.

And it won't have any effect on the amp whether you feed Composite, S-Video or RGB through it. Neither should the amp have any effect on the video signals passing through it. As far as it is concerned there is no real difference between the various formats.

Thanks for the response earlier, the reason I was thinking that RGB would not be appropriate because all I could find were products like this:

http://www.tvcables.co.uk/cgi-bin/tv...T-ADAPTER.html

Do you know what the 4th sync cable does, and is it needed, I assumed it would be.

However on a second search I have found this, which does not have the 4th phono cable

RGB SCART to 3 Phono

RGB would obviously be a better solution, but I am worried that the second cable will just be component cable rather than an RGB.

I have now reached the limit of my knowledge about a/v cables.

Thanks.

Jon