Digital room correction, any recommendations?

Stereo or 2 channel?

I tried a few. I never failed to notice a slight reduction in resolution, despite the improvement in bass response, etc realized via digital correction.

I recommend judicious use of room treatments first, and if that fails, I'd try the digital route.

Just my experience; I'm sure many others will disagree.

Two-channel.

Do the room first, you may not need anything else.