This has been discussed in many threads. Many threads. The consensus, I believe, has been that if audio is your first priority, then yes, adding a pre with HT bypass is a good idea.
Check out <http://www.audiophile.no/en/articles-tests-reviews/item/426-amplifiers-with-processor-input> for a list of available units.
Check out <http://www.audiophile.no/en/articles-tests-reviews/item/426-amplifiers-with-processor-input> for a list of available units.