I have a pair of Audio-Technica ATH M50x which I love. I thought I would upgrade and got a pair of Sennheiser HD 660s. Got them today. Nope. Not even close. Why do people rave about these? Yeah they had better imaging than the my Audio-Technica. And maybe a bit more resolution. But there is a sheen over the sound. And no punch and attack like the Audio-Technica. I found the Sennheisers boring actually. Didn’t make me tap my foot. Drums didn’t sound accurate. Guitars lost the grind and attack. Blah. Can anyone recommend me a pair like my Audio-Technica but with improved imaging and resolution? Maybe a tad more ‘ polite ‘ on the high end? Thanks. Really disappointed with the Sennheisers.