I haven't heard the Monster Dna. I coulda but I was wearing beats at the time and had just realized I was gettin played. I was feeling butt hurt so...I dunno bout those?
Ultrasone HFI-580 50mm ....ima fan of Ultrasone. They can be had for around 150?
Gmp 8.35d .......one of the few cans I didn't get to hear..I have no opinion (anyone care to pipe in with driver type and size)
Onkyo es fc300 (one of the more underrated/known set of good low freq reproducing cans..I dunno why)
Pioneer hd1500 are studio monitor type. They have 50mm driver and took my fiio and my only gripe was fit. I didn't like the sound? Personal pref.
ATH ws99.. These got 53mm drivers and look plain and were on the bottom rack here in Japan but they shine in the low end. I think they are ugly but I was drawn back to them repeatedly because the Bass sounded better than the Sony MDR series of similar price.
The Yamaha.... If you listened to the Beats Executive then the Studios...you'd maybe save a bit to just get the Exec's/Pro's The Yamaha 300 series is like that. After hearing the 500 series I just wouldn't feel good with the 300's. I'd save a bit and get the 4's or 5's
We are mixing over and on ear cans. The Onkyo are large but actually on ear. They sound superb. Very very nice low end. Amazing for the price. My JVC's are my Bass impact cans and I tried and ordered the Ultrasone HFI 580 because they too have great amped bass and their lineage is Ultrasone. I canceled getting the Onkyo ONLY because they are not over ear. No other reason except that and wanting to delve into Ultrasone.
Good luck bru. Nothing beats a sound check with your own ears...nothing. If you have a portable amp bring it and use it as it makes a big difference in lifting the low lows.