I'm hoping others will chime in and give you a good range of opinion, as it seems pretty divided. some here feel they lack bass, and some (majority? maybe) feel basically as I do. I had the Denon D5000 and then the D7000 for quite some time. The Denon brothers have a bunch more visceral bass in comparison. There is a bass drop in Evanescence "Haunted" on the Fallen album, about 5 measures in, that was chest and skull rattling with the Denons. It is neither chest nor skull rattling with the Mad Dogs. It is played true and in balance with the rest of the music. You hear it, not feel it. I hope this helps a bit.
I'll reiterate - I really, really like the Mad Dog signature, and that is coming from a few bass heavy cans - the Denons and the Ultrasone Pro 750 and HFI 780 (Note - it took two pairs for me to determine I am not an Ultrasone fan).
I tried same song, with my Beyer dt990 pro 250ohm (despite being rather bass heavy) driven off by my iPod classic+fiio e17 and it doesn't even skull rattle... and I'm having no eq
Are the Denons considered beasshead cans though and if so, do they have a few db boost in bass, or a v shape signature, sacrificing mids?? And if that skull rattle bass drop is missing in the MD, could a bass boosting amp get it to that point?
I'm already sold on MD w/DP, I'm just more curious than anything. I'm likely going to find out myself when my birthday comes around. Dan, you'll be hearing from me in abount a months time ;)
I'm under the impression that the DT770/80 is the bassheavy can of that entire line Beyer line.