Haha... have you tried Audeze headphones? Leather pads tend to offer very satisfying bass.
I would also recommend the ZMF Omni's for well articulated, satisfying bass:
The 650's have nothing on them, with respect to sub bass.
Lol, I don't my bank would let me buy a Audeze headphone. Wow those omni's look awesome, id love to hear any of those headphones.