Beyerdynamic dt770
Denon d2000
Ultrasone pro750
Ultrasone hifi780
Ultrasone hifi580
ATH AD900
I can honestly recommend the HFI 580s. Amazing BASS. Much better than the one of the M50s. They are great, currently using them to listen to music and post this. I've had a lot of people recommend the DT770s but remember that there is three versions of it: 32 ohms, 80 ohms and 200 ohms (i think). 32 ohms doesn't need an amp if I recall and they are pricier but I could get a definite thumbs up for the 80 ohms version (amp is still not a requirement but this particular version could benefit from it).
Happy shopping!
The HFI-580's its a better headphone than the M50's in some aspects. Its a slight upgrade in my opinion.
If you want more bass, do consider the DT770 pro 80.
both ultrasones and beyers are neither an upgrade IMO, more of a sidegrade dispite their price.
My suggestion would still go to the DT770 pro 80. i do believe that particular headset is an upgrade.
If you are content with the M50s, then why waste the money to do an upgrade? Trust me, the upgrade path is not always paved with golden bricks. I've hit plenty of pot-holes and speed bumps on my personal journey. I should just convince myself sometime that I'm content and leave it at that.

If you are content with the M50s, then why waste the money to do an upgrade? Trust me, the upgrade path is not always paved with golden bricks. I've hit plenty of pot-holes and speed bumps on my personal journey. I should just convince myself sometime that I'm content and leave it at that.
QFT. "Welcome to head-fi, sorry about your wallet"
