My 1week old IFI system (iMac->iUSB->IDAC->ITUBE(Buffer mode)->ICAN(max gain)->ATH-W1000
Listening to mostly vocal stuffs ripped to FLAC and played through VOX. Sounds just fantastic. A few notes
1. Itube really sings only after 15 minutes.
2. Itube can get quote hot.
3. 3D doesn't really work well with my set of headphones.
4. Some noticeable distortion of musical instruments.
But seriously, I am beginning to doubt if this will really work with the higher impedence headphones like HD800 or the T1. Need to go audition one of these days.
While it is a good amp, the HD800 did sound lean when pair with the iCan.
I had the iCan for a few months to drive the HD800 and TH600.
The bass from the HD800 sounds a bit lacking and I ended up using the bass boost switch most of the time.
The HD800 also need to be driven a bit loud to bring out the bass, but then treble can get hotter also and a bit fatiguing for prolong listening.
IMO, you need a more powerful amp to drive the HD800.