Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Clean sound spirit

I've migrated from the PortaPro to these in the attempt of a more sportive / clean look than its twin offers. It was a success, the sound quality makes this headphone the best in its class as the PortaPro has as historical factor. The sound is so clean, precise and powerfull like it's supposed to be. I would ever think about earplugs while these exists.The bad side of this headset is that the headband while behind the head can press your skull quite a bit if used more than 3 hours straight. Or may just be my big head! Nevertheless the sponges that help the confort of this usage, may rip apart sooner than you expect dependingon the type of usage you give. It comes with a carry bag which is great for protection. I do love abd carry them everywhere I go. A must for every "portable" music lover!