If i consider to change my source(iPod Classic 5.5gen) what can i buy? Portable and desktop solution with quality/price best buy?
If you've decided on the HD650, then head on over to the HD650 thread and ask for more help on amps. I have a violectric V100 it's not the best match but I also need it for other headphones that I own.
I will say again, if you are considering the HD650 then consider the Sony MA900, they are almost the same minus the mid bass far more comfortable and cheaper. At 22 ohms instead of 300, it's less picky about amps as well