ADDING TUBES TO HOME THEATER????

It's your money. But, most of the experts I've had any confidence in have argued for "timbral matching". That is, the amplification and the speakers should be similar or identical. I've heard, in my own systems, what can happen when you mix and match. It's not pretty.

If it's for movies,,, I dont have an opinion, but for the music part of it, I have also been thinking about tubes for the two main channels..either in a preamp or amp. For music those two channels are (of course) primary and I think getting the best sound possible out of them, regardless of matching with the other channels, is of highest importance. So, music wise, it sounds like a good idea to me.

I use monoblock tube amps (VTL) for my two front channel and solid state (Anthem for rears and center & Bryston for sub) for the rest. Since all my speakers are matched (Snell), I find it works great . . . excellent 2-channel and seamless HT. I use an HT pass through on my pre (VTL).