I like to listen a bit louder than average. The E17 and X3 has just enough power to power my Q701's to loud levels, but on oldie songs, there wasn't enough power
However it should be enough for most people
The E12 imo is the better amp. The E17 was a bit warmer and bassier which could benefit the Q701, but ultimately for a reference headphone like the Q701 (I don't have K so I'm using Q as a close enough comparison) the E12 with its cleaner sound and power worked great.
But of course, the E12 doesn't have a DAC and thus the E17 will probably actually be the 'cleaner' amp if used with the MBP
Quick reply! So it could be the e17 might be the one for me. Does the e17 have a line out feature? In a veiw to use the e17s DAC and the e12s amp? Or would it not really be worth it or a good enough improvement to warrant combining the two?