I'm somewhat new to my interest in headphones, and right now I would really like an over-ear for home. I'm trying to stay around $300, but I could deviate some. Some things to note: I have Momentum on-ears, and I don't want to get more bassy than that. I still like a good thump in from bass and percussion though. My ears are pretty big, and a lot of over-ears don't get a good seal. The Momentum over-ears don't get over my ears very well at all, and my dad's B&O H6's are one of the few over ears that actually get fully circumaural. Even the Mad Dogs, which I've tried and enjoyed are a little bit small for my ears (just big enough that it wouldn't be a problem).
Good imaging and head stage/soundstage are some of my favorite qualities in a headphone, and as a home set, I'm okay with an open pair. I don't have the $ to dish out for an amp on top of this right now, so I'd like something that could be driven well by a phone or computer. I've heard the HE-400s are down to $300, but I also see some mixed reviews on them which might make me hesitate.
I've tried my friend's Mad Dogs without an amp and was pretty pleased, but I didn't listen for too long, so I can't be 100% sure they're the ones. From what I heard, they seem to really shine with acoustic music, which I don't have a ton of. I enjoy the ease and dark sound of the planar magnetics, but I'm not anti-dynamic driver. I listen to mostly hard rock, alt rock, electronic alt, and some acoustic. I would really appreciate any suggestions.