[Osmolite]

Hi guys,
 
This is my first post, although I have been lurking around these forums for a while now.

I purchased a pair of AKG k701s recently out of impulse, and they are my first pair of high end headphones.

And to my demise, they sounded the same as my cheap sennheiser HD201's. But they were really comfortable, so I decided to keep them.

Luckily I stumbled across headfi a few weeks ago, and found out these bad boys need a good ampage to drive them. Although I also stumbled across various threads which stated the AKG k701's didn't need amp's to drive, since they are relatively low ohm (64ish).
 
Anyways, I'm really convinced that these headphones can sound a lot better than they are now.

So with my tight student budget, I've got my eyes set on either of these amps/dac's:

Aune T1
 
Fiio e7 (Heard that it doesn't supply enough power though)
 
Fiio e9
 
Out of those three which one would you recommend for the AKG k701's? 
Or any other amp/dac's in the budget range of 200 dollars for that matter?
 
 
And if the addition of amp/dac really makes a big difference, in future I will be saving up for the O2+ODAC Combo. 
 
 
I listen to flac @ 1017kbs if that information is needed.
 
Thanks,
 
Osmolite