Are Their any Tube Preamp with Home Theater Bypass?

@kota1 BAT (Balanced Audio Technology) also has the HT Bypass function which can be selected to be used on any of the inputs.  As stated above, you can select Unity Gain so the processor controls volume for all channels and the 2-channel preamp is simply a pass-through function.  I have a BAT preamp as part of a very substantial 2-channel system.  I also have a Marantz pre/pro and 7-channel power amp that are on a separate AC circuit from my dedicated 20-amp circuit for the 2-channel system.  I only use home theater about twice per month.  But when I do this system design allows me to utilize the main 2-channel power amp and my main speakers as part of the home theater total system.  This design and setup has zero impact on the 2-channel system.  The home theater components are completely separated from the 2-channel system, on their own circuit, and remain powered off most of the time anyway.  Should you have any question I welcome a Private Message.

McIntosh C12000, C2700 and C8 all have HT pass thru. I own the C2700 and use the HT pass thru with my Anthem surround processor.

@bjp9738 , I am looking at the Mac MB50 streamer/preamp and the tips I got for a workaround from @carlsbad ​​​​@audiotroy have me thinking this will fit my needs. I am really intrigued by the Mac brand and am already using the DTS Play-Fi system the MB50 uses around the house. What do you think?

The Nagra Jazz (and maybe other Nagras) have bypass.

The preamp does not need to be powered on as it moves relays over to the bypass when shut off.

It seems to sound ok too,

Thank you to everyone who posted. I have a lot to shop for now and really appreciate the suggestions. Looking forward to checking each suggestion out and will post about it once it is in my rack. If you look at the system on my profile page you will see I am mainly a multichannel enthusiast but I saw a post about this HT bypass feature and since my multichannel is set I decided to try a really nice two channel pre. I am sure it will be different than what I have now and that is why I asked for some feedback here.