I'm a big fan of dedicated 2 channel, my two channel system has tubes... Tubes do have their issues but they transduce complex harmonics better than SS unless... you spend some serious cash.
So back to your question, I also have a dedicated HT in a different room, todays movies need no less than 5.1 channels and can do very nicely on 7.1 (movies on 2 channel system using phantom mode for center... YUK!). Consider NAD and/or B&K for amplification on HT, B&K is a little bit on the warm side of neutral. NAD, underrated and the real deal when it comes to power... great impact for HT. You can get NAD's used at a reasonable price, consider 'bridge mode' for some serious power.
So back to your question, I also have a dedicated HT in a different room, todays movies need no less than 5.1 channels and can do very nicely on 7.1 (movies on 2 channel system using phantom mode for center... YUK!). Consider NAD and/or B&K for amplification on HT, B&K is a little bit on the warm side of neutral. NAD, underrated and the real deal when it comes to power... great impact for HT. You can get NAD's used at a reasonable price, consider 'bridge mode' for some serious power.