Quote:
Originally Posted by qodnec 
i'm not sure how the impedance or the sensitivity changed but they're definitely very easy to drive. i'm listening to a much lower volume setting now. part of it might be attributed to the better isolation, but even in completely quite places i'm still listening to a lower volume.
i can't do a comparison between the TF10s and the TF18s out of my computer as i've never tried the TF10s through my com as they sounded so good out of my zune.
the question now is whether an amp can rectify bad synergy without using an LOD.
looks like i have to go down to jaben or stereo to try out a few amps. but that will have to wait as my exams are looming. but it's hard to study when i know at the back of my mind that i'm not getting the best out of my TF18s 
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Hmmm then obviously impedance is probably not the problem.
What confuses me is why a particular DAP makes such a terrific difference. Have you tested the TF18 out of any other DAP? I've never really compared the SQ of different DAPs, so perhaps I'm ignorant in this matter, but I'm skeptical about the difference they make (as well as cables, lol). I'm worried that this problem you're having affects DAPs all around, not just your Zune.
Well, whether or not it can rectify the problem without the LOD is dependent on where the factors that cause the lack of synergy lie in the signal path. Obviously there is no way to test this, so your only choice is, as you said, to go and test a couple of amps. Or if it really is the Zune in particular that's causing the problem, you should test the TF18s on your friends' DAPs too.
Best of luck for the exams, by the way.