I agree with both doctorblue and jazz's assessments on the harman kardon cls.
These are truly good headphones for its current price.
I just wish the treble was forwarded to the likes of the mikros90 (as it has similar detail on both)
The bass has to be tight as the mikros and re700s. For some reason, it doesn't sound full like the re700s and mikros90. It sounds leaner, which is not so good imo.
The lack of lower treble makes the whole treble sound thin in comparison to the mikros90. The re700's harsh lower treble is hard to listen through. If it weren't for the bass and mids on those re700s, I would have sold it.
Hopefully burn-in will correct this.
In addition, there is something weird with the mids, I cannot actually put my finger on it. However, it only happens on some songs, so it is probably just me analyzing it a bit profoundly. I've done this profusely with the mikros90 and the re700s.
Mids are only somewhat recessed at the moment.