Tube preamp enhancement of HT processor sound

All the components in my audio system after the streamer and the turntable are Audio Research Reference tube equipment. My home theater is all solid state… really good equipment and natural sounding.. My reason for not doing tubes is simply to me the video distracts me from the sound just enough that it was not worth it to me.

Is arc preamp used with a ht bypass or completely separate.

I believe arc tubes are on when watcing tv with bypass, any impact to ht sound?

My ARC system is a completely separate  system. You can see it by clicking on my user ID. 

My home theater is not shown, but is a high end Meridian Surround processor, a 250 wpc Rotel 5 channel amp, and all B&W 805 speakers, so it is all solid state.

I run my Maggies thru a BAT tube preamp on the HT for l&r.  At one point I ran the l&r via preout directly into the power amp.  It sounded great either way, the power amp being the common denominator here.  But I think I prefer the tube preamp.

 I'm pretty sure the signal does pass thru the tubes, because I can adjust the level of the HT bypass in the options menu of that input.

I never really did an a/b comparison, so I can't say for sure, and I don't critically listen to the HT system.  I can say I'm satisfied using the tube preamp in HT bypass mode, and the soundstage it throws is quite nice, I think better than the HT system alone.