Sure. The O2 is a good amp for the money, however I found it to lack in overall resolution, details and soundstage. Much of what I like about the
Mjolnir is the transparent and detailed nature of the amp. Comparatively the O2 was anemic to my ears, it just doesn't have the control or clarity.
The LCD-2's have the ability to mask some of these traits where as with the LCD-3 things were much more apparent and unenjoyable for me.
Synergy maybe. Specifically the LCD-3 have more articulation, better soundstage and a much welcomed treble lift (not bright) just detailed.
There's more clarity overall and with the O2 I just didn't enjoy the shortcomings.
It's all just a matter of preferences. I'm sure there are many who enjoy that combo. I just found other amps better suited, personally.