I can tell you this, I just did a comparison of the Stereo Japan King and Stereo Classic "Cool Struttin'" and the Classic was more dynamic and far easier on the ears. The King sounds like the bass was boosted a bit much but more so the upper mids sound really tweaked. It's really opened up and it's too much for me. I'm not crazy about all the Classics, but in this case I may not bother with the MM. I think the Classic sounds reasonable. But maybe the King is not a good comparison point? The other cool thing about the Classics is how many Monos they did. For all the pre-1960 Blue Notes Monos whatever the Classics lack at least they are hundreds of dollars cheaper. Jury is still out on King for me. For MM I only get the 45s.