Yes it can be harsh at times but depends on a amp it's plug in to and it's not too much for me.With my Pioneer SX-3700 i can turn the volume up and it's not fatiguing at all.
Nice, i had the kenwood KA405 that made me sold my lovely cube ,then i got the onkyo A925 which gave the 701 more "modern" sound (less tuby, less bass, more balanced sound, but still very musical and detailed) and the Onkyo also fixed my treble problem...
^^^
I encourage you to try vintage amps before you dropped your hard earned cash on a expensive Headphone amp.My PIONEER SX-3700 is driving all my Headphones very well that i'am thinking of getting rid off all my tube HP amps.
Yup, get a vintage amp, or more "modern" receiver ,its the best way to drive the Q701, wont trade my Onkyo to drive my 701 even for Leben or the audio GD master 9! (which i tried both with my 701)