Thanks it's all working now.

I have set them up as in corners as they are quite close in - sat 15 inches from the rear wall and 28 inches from the side.

I have to have them there as the wife won't have them in front of the windows...

What is the latest electronics I can add to them - and how do I make the most of the 24/96 quality?

They have a very official Meridian sticker on the back with date of upgrade and an engineers signature so I an sure they are 24 bit.