The 150 Ohm driver has a wider frequency range on both ends, though the Super One is no slouch. The SO tends to be brighter overall but can be tuned to be very beautiful and has a smoother sound. Both have a large soundstage but my ear says the SO is larger. The 150 ohm sounds a lot like the 40 ohm, just better in every way. The biggest difference to me is more note weight on the 150 is heavier or more dense. I bet they graph similarly, but the 150 comes through with authority. It does require a small amp however and scales very well from there. 1 volt dongles won’t do it justice. I wonder if VE’s 2 volt dongle will for $11, but that’s a discussion for a different time, a different place. The SO is great for orchestral music because of the soundstage and the way it gets instrument’s timbre across. Bowed strings sound more like bowed strings. Though brass may actually sound a smidgeon better on the 150. It’s close. I prefer the 150 on electronic music because of its harder hitting, deeper, drier bass and better portrayal of electronic hi hats. The instrument separation seems to be a touch better on the 150 as well. It’s a drier sounding driver. To me, the SO is more euphonic/analog sounding where the 150 Ohm is like a precision made digital music machine. Both are a step up (IMO!) to the LBBs Though the LBBs is cool. It’s even handed and does everything well for the price. Whatever genres you like, the LBBs delivers it in a very levelheaded manor. It actually sort of sits between the 2 but has less frequency range than either and less detail. Drier sounding than the SO, more organic/wet than the 150.