I'm in the market for a pair of cans in the $150-230 price range. I've found a few candidates and am just about sold on the AKG K167 Tiësto. I was previously sold on the Beyerdynamic Custom One Pros but they seem to be a little too bassy and not the absolute best for the price. I listen to about 35% rock, 35% R&B, and the rest is a mix between pop, rap, and classical. I also want the HD598 but they don't really seem to have enough bass. As you may be able to tell, I do slightly lean towards bass (slightly). I won't be amping them. I will use them for portable use if they are portable headphones like the K167s but if I were to get the HD598s, I'd use them for home. Basically, it doesn't matter if they're portable or not, but if they aren't portable they just better have some great sound coming out of them!