The recessed mids have been a problem with all the "punchy" mid-fi headphones I've tried. The MH-40, for example, IMO completely lacks a mid range! I wonder how the DefTech Symphony Ones are faring. There's not been much on it in the HeadFi forums and of what I've read, when utilizing the headphones' own DAC with ANC on, they sound like a dream. Either way, I wish you luck on your quest! If the PM-3 doesn't cut it for me, I'm just going to go with the H6.