Bose's idea of stereo (in this instance)is each musician having his own L1 - check the ads. One OMB using one L1 gives excellent fidelity, just not in stereo. The complaint from arranger players is that their "stereo grands" sound flat and have no presence. Duh, you're playing stereo sounds in mono.

MY listening experience with the L1 is that it's great, processed sound. Dynamics are compressed, but the sound itself is spread evenly throughout the venue. I don't hear explosive bass or growling mids. I think it has its place, but it isn't the end-all solution for everyone.