The only device that I have ever seen with two separate balanced stereo outputs which have separate individual analog stages is the Classe CP-800. It's a 2-channel DAC/Pre. It is NOT a multi-channel home theater processor like the Krell HTS 7.1. There's one on ebay now:
https://www.ebay.com/itm/363361233531?hash=item549a046a7b:g:QtoAAOSwaC5geMU7
I have NEVER seen a HT processor that has two separate XLR outputs for stereo left/right channels. There are some consumer level processors/receivers that have an option to bi-amp outputs, but the performance is usually not that great.
If you want to move up from HTS 7.1 to a better processor with excellent audio, look for a used Krell S-1200.
https://www.ebay.com/itm/363361233531?hash=item549a046a7b:g:QtoAAOSwaC5geMU7
I have NEVER seen a HT processor that has two separate XLR outputs for stereo left/right channels. There are some consumer level processors/receivers that have an option to bi-amp outputs, but the performance is usually not that great.
If you want to move up from HTS 7.1 to a better processor with excellent audio, look for a used Krell S-1200.