Connecting a DAC directly to an amp?

This is getting sooo damn complex for my tiny mind.  Very very and maybe toooo techie

Have looked into a Barrett preamp $9k which shuts down tubes while doing ht bypass.  Barrett may be a great box and only 2 tubes and other fancy circuitry that avoids need for more tubes.  but more tubes would seem better.
Absolutely insane why tubes in a great preamp like arc or many others, can’t be designed to allow shutdown during ht use.  Sooooooo stupid.  Sooooooo many users would love this.

so I may have to live with more frequent tube changing and higher electricity costs to have a great tube preamp all ready to go at a moments notice.  

Modwright looks good.
Can tubes be off during ht bypass?
thanks

just read in manual that ht input can only be enabled via front panel and not remote.  Seems really odd.

Looking at a modwright ls300 tube preamp.  Hard to plug dac directly into amp when I have an avr.  Only use for streaming.

tube preamp allows ease of functionality between avr and preamp.

These switches look really good and credible. Don’t look like they can be controlled via remote.

so if I only stream, need for a preamp seems totally unnecessary if using a switch.  Vast complexity and expense and value and need for a preamp has never been fully resolved in my tiny mind.

thanks George. Big potential for this type of product for those wanting theatre bypass.

For the 20 mins a week I listen to stereo I want that 20 mins to sound extremely good and to be memorable. There should be no price tag to great when it comes to being successful in finding an extremely grate sounding preamp.