Like most things it depends. With the right speakers and calibration software I've gotten a flat FR from 30hz to 20khz with no special room treatments. Genelec 8351b using GLM and Dutch and Dutch 8c using their boundary settings and REW. I'd like to see what Kii3 can do, maybe someday. Anyway in your case I'd get a calibrated mic and REW since you're doing stereo. That can help with placing treatments.
Room correction room system vs ears….
So, I splashed out and spent more than I wanted to on a nice little Benchmark amp and preamp etc and since I’ve gone that far I got curious about a room correction system for this and it’s going to cost me over a grand apparently. As far as I can gather these dial in the music before it comes out of the speakers…?
im wondering if I simply messed around and found the sweet spot without a room correction system how much of a difference this would make. I’m far from savvy with audio and try to keep things simple for my simple brain, so, on a scale of 1-10 how much difference would I percieve by splashing out on a room correction system?