Ok, please edit your OP, so that we know exactly what you want in a headphone.
Beats are overpriced by $150-200, worst case scenario if the dt 990 only gives 85-90% of what Beats does, I guess you have a choice to make. Which is more important, $150 or a bit of increase in bass quality?
Beats are like Apple, the have a fan group who just say they are the best because they pay so much for them
If you don't plan to use wireless, a mic stand is $30-40 ( even less if you want)
I am not really an audio expert as I am fine with my $50 headset, I just do googling the same as you
http
/www.head-fi.org/t/528681/beyerdynamic-dt990-vs-dt770