Are Their any Tube Preamp with Home Theater Bypass?

@kota1    Have in mind that,  Home Theater with tube preamp; means

that the tiubes will be used a lot . Therefore , they will have to be replaced 

quite often

Are *there

@maxwave , I am clueless in the ways of the tube and had no idea that they were that high maintenance. I will check with the vendors to see what the likely schedule will be and shop for the low maintenance variety. You may have saved my bacon there, thanks.

Yes, it is true that the tubes in a preamp will be “consumed” even when using HT bypass. Just keep in mind signal tubes in a tube preamp last longer than power tubes in a tube amp. 12AX7’s, for example, can last upwards of 10,000 hours. I’m about 75% 2-channel music, 25% multi-channel HT, so not a huge concern for me. If you’re the reverse, it might be more of a concern, but not nearly as much with a tube preamp as if you were looking at a tube amp with a bunch of KT88’s that you were going to be running 8 hours a day between music and HT. It was for that very reason that I went with a tube preamp and solid state power amp.

VAC preamps will provide you exceptional sound and a Home Theater Bypass.  I believe the bypass can be used without power to the preamps tubes.  Call VAC and discuss.