The BeyerDynamic also comes in 80 ohm version which may be better if you only run it with your phone sans amp. The Elear is 80 ohm I believe and was just fine either with or without an amp (amp preferred). I prefer the 250 ohm model of my BeyerDynamic DT770 Pro's. I'd like to know what the 600 ohm model is like but it's hard to find. I bought one well used 250 ohm one and got it, a small SS amp by SMSL, and a nice headphone stand by Corsair, all for $100. I found and purchased a mint pair for another $100. I'm debating whether to keep or sell the worn pair. It's sounding great but the pads are worn pretty flat and the headband adjuster on both sides the plastic is cracked. I just installed a pair of crossed zip-ties to each side and it's good to go. Parts to fix is about $30. I can live with the zip-ties. New pads would make it almost hard to notice any difference. I'm gonna try to sell the little SMSL amp even though its good because I already have a backup, and also the stand. So I made out pretty good with the BeyerDynamics I bought. How have you been running your Elears? Please share your impressions. Cheers.