Audio only processor - without video?

Not that I know of and for good reasons.
1. To get the best of the HD audio codecs, one needs HDMI and that carries video.
2. To get the most convenient switching, run audio and video through the same device.
3. Many processors add effective video processing/adjustments that are quite effective.

Kal

I did not say you cannot get the HD codecs; I said you cannot get the best of them which means effective bass/level/delay management and DSP (including room EQ). With analog, you can only approximate since these are not as well implemented in players (with few exceptions).

Kal