Few people with "high end tube preamps" want a noisy TV/Cable system hooked to their 2-channel audio system used for listening to music. And, no, it’s all about "sound" quality first for audiophiles. Functionality is secondary.
Circuit boards and all the processing and switching used in AVR integrated units is something most folks here will avoid at all costs. Less in the circuit is more for music audiophiles. More is just more for audio-video fans who love gadgets, and remote controls with 100 button functions.
You’d have better luck and get sympathy over on the avsforum, better to go here instead: https://www.avsforum.com/forums/
Circuit boards and all the processing and switching used in AVR integrated units is something most folks here will avoid at all costs. Less in the circuit is more for music audiophiles. More is just more for audio-video fans who love gadgets, and remote controls with 100 button functions.
You’d have better luck and get sympathy over on the avsforum, better to go here instead: https://www.avsforum.com/forums/