[osmo]

I own a pair of Denon AH-D2000s. I really enjoy the bass on these headphones when I am listening to Rap/Hip-Hop. It is nice and punchy with a good bit of weight. Also, the overall balance is very good for closed headphones that have this much bass. The problem is I don't listed to alot of bass heavy music anymore so I am going to be selling them shortly.

 

[dean0]

I have both the DT770pro and Shure SRH840 and trust me you want to get the Shures. The sq is in another league imo, the DT770 have bloated bass, resessed mids and somtimes harsh treble, the shures do not suffer with any of this. They are also better looking, fold up for storage, easier to drive.... and i do beleive they are alot cheaper

 

[Almoxil]

Ultrasone HFI-780. Bass on them is really amazing: punchy and well defined. Although being usually found for $200 ~ $250, from time to time you can get them for less than $200 (off eBay). They can't be beaten at that price, IMO.

 

[hawker800mech]

Yes, Ultrasone.