I just got a pair of dt770 premium 250 ohm from ebay today. The headphone was listed as new open box item. I briefly listened to it and found that they produce similar volume as my Akg 702s do when either plugged straight into my laptop or amp. Plus...when set on high gain, my UHA3 is able to...

So as I said in the topic, please help me to choose a pair of headphones. I was looking at sennheiser hd 650s but would hd 600 be much different? I heard they are pretty much the same. If I buy hd 650s I would have no money left for a good amp. Do you think at this stage it's better for me...