~$200 open back to complement Audeze Maxwell?

I generally really like my Maxwell, but it's a bit big and heavy, and I'm looking for something different for more casual use and a bit of monitoring for playing instruments (nothing studio critical or anything). Interested in a wired open back for convenience and comfort. Thinking about HD600 or something like that (refurbished can be had for $200). Will likely continue to use Maxwell for gaming etc.

Things I like about Maxwell:
-Bass response, clarity, and impact
-Detail retrieval and separation
-Imaging and positional accuracy

Things I dislike about Maxwell:
-Weight and overall comfort
-Midrange tuning (sounds a bit "dull" or "distant" to me)
-Slightly sibilant with spoken voices and some drum recordings

Open to any options available in USA for around $200, HD600 just seems good because it fixes the cons of the Maxwell and the Maxwell's pros cover its cons. Been a little while since I was in the market. Thanks!