[WooferCooker]

What would be a good upgrade from these cans that still have a similar amount of bass?

 

[pokepim]

I dont know if I can dig this up, but I'm also quite interested

 

[FumblingFoo]

Possibly the Philips Fidelo X2 or the JVC's H abA-SZ2000. I hear the X2's have good bass and that the SZ2000's are bass cannons. The mids and treble of the pro 900i's were pretty lackluster, so I'm sure the previous two are definitely better. If you have a really big budget then there's also the Fostex TH-900's (mk2).