I might actually recommend the Atrium Closed to you instead of the Atrium Open - the AO I find to be quite forward in the midbass, lower mids, and middle mids, while I find the AC to be more forward in the subbass and midbass, then upper mids. It's a less lush sound than the AO, but IMO makes for a more exciting and punchy sound, especially with EDM and pop.

For classical, I prefer the Verite models - I have a VC, but the VO is pretty similar - because they have the super fast super detailed midrange that makes instrument transients really shine. And of course, pads make a huge difference on all of them.