I have a question / issue... and I'm not sure if my post goes here or in the 'recommendations'. I'm a classical musician and often practice playing along with recordings. Sometimes I use my headphones, sometimes my studio monitors. I need a headphone that is 'a very' open design / allows plenty of sound in so I can hear my instrument (double bass) as well as the music. I have the AKG K7XX and they block just enough sound to not work for me (although I really like these headphones, especially after changing the pads). I have an older pair of Philips SHP9500 which work perfectly in this regard but I just can't bond with their sound or fit. Any thoughts on if the HiFiMan HE4XX would work for my situation? I've seen the charts on both but I need some real world advice. Thank you!