From the
headphonia review/comparison:
"
Thankfully, I own the Aune T1 Dac, which happened to come with a good B-USB Cable. Build quality is identical to the Magni. The backside features only standard RCA-out and the USB input. Shockingly, my trusty Aune T1 sounds near identical to the Schiit Magni and Modi Combo. I mean it. Its 95% the same, right down to build quality and size. The only differences would be the T1′s tube rolling options and that it can be used as both a DAC or a powerful 1-watt amplifier and the ocassional track that seems to push the upper region more forward on the T1 than the Modi. Tracks like Michael Jacksons’ “Billie Jean.” Noticeably more forward hi-hats on the T1 experience by itself. The Modi is more solid, more intimate, and noticeably less broad sounding than the Aune. The T1 is more aired out and both wider and taller in sound staging by a small degree.
The Aune T1 DAC/amp sounds almost identically the same but due to tube customization and it being both a DAC and a very good amplifier all by itself, I am going to say the Schiit combo is a step or two behind the Aune in quality. I think the T1 offers more."
I know you don't have FiiO E17 in your list, but here are some opinions + E17 vs T1 comparison from my personal experiences. T1 is practically designed for desktop use, while E17 is more versatile by being also a good portable amp. Soundwise T1 wins, but E17 has built in EQ which could come in handy. I've also noticed E17 to be slightly "brighter" sounding than the T1. Both are good products, but for the price T1 is very hard to beat. It is very nice looking unit and provides lots of fun if you're into tube rolling. Plenty of power to drive annies (even with the lowest gain settings) and with good tubes there is some serious synergy. T1 is practically SS amp with tube buffer DAC. In buffer stage the tubes don't affect the sound as much as they do in the dedicated tube amps. I have my tubes of choice for different music styles. If I feel that the annies get fatiguing with certain music styles (this is my biggest complain with annies), I roll in more mellow and round sounding tubes. With classical, jazz and acoustic/instrumental is use my most transparent sharp sounding tubes to really dig deep into the music. I always carry my headphones with me in every hifi expo etc meeting and I've tested annies with Lehmann Linear and Dacmagic plus among others and have to say that I was heavily disappointed with the Dacmagic. Linear sounded good, but wasn't as good as the retail price suggested (IMO of course). If you are looking to get the best bang for your buck, T1 gets my highest recommendation.
K702 Annies + K702 pads + T1 + Some nice tubes =
E: I've also heard good things about the M-Stage. Apparently has good synergy with K70X cans.