Line-level selector switch?

Has anybody had any experience with a line-level source selector switch? Can you recommend a good one?

Here's an example: http://www.russound.com/ax6.htm

The Russound product would work but it has six inputs ... I only need two. Retail price appears to be about $75.

I plan on using a switch so that I can connect both my Plinius 8100 and Denon surround receiver to my powered sub; the switch will allow me to alternate between stereo listening and home theater. The sub only has one set of line-level inputs.

Thanks!