Originally Posted by majestic12
The 650s are a bit smoother and bassier than the 600s. If the difference in price is over 80-100 bucks, it's probably not worth it for the better model. BTW, J&R music world sells the 650s for a little bit over 300 bucks.
I hope your music collection is good quality (not the choices but the format in which they were ripped). A crappy 64kbps MP3 sounds really really crappy on better gear.
Ripped lossless from CDs
Thanks for all the recommendations so far guys!