Quote:
Originally Posted by
MatsudaMan 
Indeed, but if I don't have access to them, some advice would be nice. I've heard that the hd580/600/650 all share a similar sound signature with hd580/600 being the most neutral and 650 being a little more warm but having more transparency and air. Is this true. If so, they sound awesome. Anyone have the Soloist with HD650?
Hi. I have HD650 (don't have Soloist) and listen to lots of classical music. I like these headphones with big orchestras and operetic pieces. They have this smooth and lush sound that is very addictive. They also have the weight sufficient for Bruckner or Wagner for example. I also have a pair of AKG k701 which I received yesterday and those seem to be a great companion to HD650 for classical music, especially for solo instruments, chamber orchestras, small vocal pieces. I listened to Mahler with k701 and they are fully capable for painting the orchestral volume and scale. AKG is airier than the Sennheisers but the latter have more weight. HD650 and HD600 are very similar, same signature, HD650 being a tad warmer. The chance is if you like HD580 you will also like HD600 or HD650.
Remember, different headphones give the largest differences in sound. Difference between amplifiers is mostly a lot smaller.