Any high end preamps out there where tubes off while HT in use?

Not sure, but I think Rogue, Backert, and maybe VAC might have that feature. 

Cary seems like a nice pre and only about $3k. Been around for awhile and not chronically upgraded.  Not sure what to make of price being so cheap?  Does it stack up well to arc or other high ends?

Like AB switcher.

many options here? Seems worthwhile

I use my Bryston amp for HT pass through. RCA to my Luxman tube preamp and balanced to my Krell Showcase surround processor. Just flip the switch on the amp.

Do many amps offer an input selector?  Even better if done with a remote. Makes all the upstream ht bypass issues a lot easier to deal with, ie by not having a need to do anything.

my guess is the connector complexity may no be good for SQ.

I think ht connect to stereo is an issue that’s overdone. It can be done quite well.

why sooo afraid?

Any high end preamps out there where tubes off while HT in use?

Why would anyone want this?? You'd have to wait an hour or so for the preamp to sound right if you wanted to use the 2-channel.

Wait an hour for tubes to sound good? Seems absolutely horrifying and super inconvenient, and this is ok to audiophile community?