They both do different things well. Depends on what source I'm using but end up listening to the 600 or 650's. The 701's are nice but lack the warmth I enjoy.I do enjoy their large soundstage and often listen to them with my tuner. The Denon D5000 are very nice but still somehow I end up listening to tghe 600/650's. That says alot as I actually believe the D5000 to be my best headphones for listening more critically.