If you don't want to get the XB1000's, you can definitely settle for the XB700's if bass is your priority. When I first got the XB700's and listened to music straight out my iPod, I was unimpressed. I said to myself "Umm, where's the "extra bass" its supposed to have?" I was fairly new to headphones and did my research, figured out I needed to amp these headphones to get to its potential. Once my Fiio E11 came in, i tried them with it, and i was blown away. These things go LOUD and the bass extends very low, clearly audible even down to 30hz. I listen to a lot of hiphop with sub bass (30-60hz) and these are perfect for them. Since then I've been dying to get my hands on the XB1000's. Right now they have them on Amazon from the US for $279 but they're out of stock and they've been like that since mid august (when they first went up), so if your not sure about the extra $200, don't be afraid at all to go for the 500's.