room correction

I enjoy films and music in Stereo (PC -> DAC -> Rotel Amp -> ATC SCM20). I am aware that in my current setup where surround is downmixed, I'm losing the LFE channel. Furthermore, I am not currently running any sort of room correction. Finally, my partner is tired of fiddling with the PC to watch...

I struggle to understand this. I've seen some discussions of this on other hifi forums, but they quickly become very heated, and attract people who have vested interests in the issue. And they quickly become so technical that I end up being more confused than I was. Here on the forum there are...