Difficult and or bad recordings sound fine to me. I have a reissue from the early 80's of Ronnie Wood and Ronnie Lane's" Mahoney's Last Stand" which may be the worst CD I own. Great music, but it just sounds hardish. I do get some incredible 3D imaging, but not with the frequency I think I should get. When listening to The Police, the drum kit is incredible! Sometimes Stewart Copeland's kit seems larger than life. The typical audiophile records have a fair share of 3D imaging, but even then, I often feel it could be improved. Electronica provides incredible imaging effects also. Often times, imaging far from outside of speakers and percussion sounding so deep it seems to come from behind rear wall. Acoustic bass is often incredible, but again I think what I see could get better. Using my friend's Spectral system as my reference for 3D imaging, as listening to really great gear is few and far between in my area. With his setup, vocalists have an eerie presence. It often feels as if i'm behind the glass in the studio watching and listening to the vocalists.