[DiscoBurger]

Whats happening, 
 
like the title says I'm in the market for some cheap, durable, and portable overear headphones. I have some ultrasone pro900s at home but those need an amp and I hate the inconvenience of dragging one around with me. I need a pair of headphones that "go to 11" soundwise and have a thunderous bass (subbass-midbass-all bass). I want to pull the trigger on one of these but I am kind of lost any guidance would be appreciated...thanks much. 

 

[DiscoBurger]

Lemme clarify here. I have a pair of ultrasones so I can already say that I want a deeper bass than the tight bass that the ultrasones produce. I want the bass to be tight, and have a deep, rumbling sub-bass. Something maybe "darker?" than the ultrasone sound...the ultrasones are a bit too crisp for some genres of bassy music.
 
Anyone heard the M100s? Are they worth the $200 more they are than the other headphones on this list?
 
I'm leaning towards the ah-m50s atm.