I got the Leben for the Harbeths - in my small den, the result is nothing short of amazing, but that's an apples-to-oranges comparison of headphone systems to a speaker system. I had always planned to keep a separate headamp (had settled on Earmax AE) but once I heard the headphone out on the Lebens, the EMAE was booted out the door. I do not find the combo 840c/Leben too bright (stock tubes, Kimber SS ICs) - even with DT880s. (now DAC1 was bright for my taste, and that also got the boot). I'm not so good at describing sound, but a crude summary of what I'm getting is a blend of what I liked about my (previous) L3000 and K1000 systems (especially with HD650/HD580 - I know it's cliche but these guys scale!). The only negative with the Leben is that it runs hot. And I don't know how the Leben fares with low impedance phones. As a side excursion to balanced, I also have a LDVI (which is great! and I'll post further comments on the LDVI thread), but the balanced dedicated LDVI doesn't really improve on Leben SE headphone out (that's a compliment to the LDVI). Leben is not cheap, but if you run speakers and also need to run (uncompromised) headphone out as well, then holistically it's quite cost effective.