How good are the mids on the dt 880? I was thinking about getting the premium version, I am currently undecided between the q701, or the 880's even considering some 535's. I mentioned to Tyll, that I like headphones with a really accentuated and forward midrange but don't lack dynamics and he recommend these. I am actually a amateur singer and I love intimate forward sounding vocals above all else, I love to play attention to the lyrics.
If you want a forward midrange I recommend the Sennheiser HD600 or AKG Q/K7xx. While I don't consider the DT880's mids recessed they definitely aren't forward. My top recommendation would be the HD600. Its amazing with vocals. They aren't super forward to the point that the headphone isn't neutral or smooth, but they are forward and very enjoyable if you're focusing on the mids. For me they sometimes have even too much mids (only slightly) but for you they would probably be perfect.