Hello everyone, this is my first post here and I would like to have some advice.
I did some extensive reading on all of the DAC/AMP combos listed above, but I just can't get to a final decision, it seems that everyone of them has a different feature that would be more appealing than the other. My main use would be out of a Macbook and ipod classic using my recently purchased Sennheiser HD650.
Example: Fiio E7 has good portability, great reviews, all needed connections, but do no upsample to 24bit/96kHz
HiFi-Man EF2A appeals to me for having a tube, although I don't know how good it would pair with the HD650.
Maverick Audio TubeMagic D1 is not as portable, however it lets me connect to my receiver/turntable to use as a tube pre-amp, but I read in another post that it has some problems upsampling to 24bit/96KHz through USB.
NuForce Icon uDAC-2 does the upsampling but I was a little scared away from this one after reading a test that was performed by another member.
Is upsampling really important when listening from flacs and such? Will tubes make it for a much warmer sound than the other choices? Any other options in the $100-$200 range?
I appreciate any help I can get. I know I may have got some mis conceptions somewhere, but it was a lot of learning for 4 days and I didn't quite assimilate all of the parts yet.