Anyone here knows I adore the W60 and honestly believe it may be the most underrated universal IEM on this forum.
However, if prog rock is your game, I highly suggest you look towards the K10. To me the K10 is like a 10 or 1146. It has Shure's directional tuning but improved in every regard. The midrange, while fun is less forward and the treble extends further. Congestion from SE846 is also absent. Thanks to a friend here, I listen to prog but am picky and only like the very best like steven wilson, porcupine tree, and a few others.
However, if acoustic and female vocals were all I listened too, the W60 would be hard to pass up. I have said it many times that if Jude or another video blogger gave this IEM a fair demo it would hit much bigger status. It is underrated and a real gem.
Cheers!