K-701 : hype vs reality

There are many hyped reviews about this model in particular.Headphones are classified as reference level which in reality means if your all chain wont be in reference level you wont hear what you expect to hear.First time I heard them in 2012 y. when they were still made in Austria and easily fell in love with silky sound and decaying notes.So when headphones arrived last week I was ready for eargasm but it couldn't be so far from the truth.Sound was painfully lean with no signs of bass or at least mid-bass.Were was nothing like that.High frequencies were annoying and irritating.So I decided to left them on their own for at least 50-60 hours connected to portable player.Yesterday after few days I tried them again and situation improved a bit.Bass reminded about his existence,less emphasis on higher frequencies- more balanced sound.Still not sure if its a keeper.Already tried 3 different sources and not happy so far.Wearing comfort is great hands down here.Sound is more spacious in compare with AKG 240,probably because of open design,Feels good,looks great but sound is with big question mark.Headphones are very unforgiving and abnormally lean.Im guessing that only tube amp would be able to put some meat on bones here :)