Hi, thank you for your answer. I don't know about the Q701, I have the K701 and these Headphones are the best I've ever heard in my life for alle musical genres. I did the reversible bass mod, look here: https://www.head-fi.org/threads/reversible-akg-k701-bass-mod.660408/ In addition I am using the FiiO A5 AMP. Unfortunately I can't hear them on the go but only at home. Thank you for the information! I am thinking also about SRH 1540. Did you compare them before you bought the PM3?