Headphones

It depends, for me giving up the soundstage from the 598 was a bit disappointing since I paid 350 euros for the HD650 at the time, I didn't expect that downgrade. On the other hand the resolution and definition in the sound is a definite step up. The HD650/HD6XX just sounds really tight, like you just came from the hairdresser lol. I'd say you'll probably enjoy them. Yeah you might need an amp, they're just demanding enough that your phone or computer might lack some volume with them. Depends a lot on how loud you listen as well.