I'm listening to Grado SR80's right now. I bought them after I fell in love with the SR60's, which I now keep at work. I've never found them tiring, but I proba

I'm listening to Grado SR80's right now. I bought them after I fell in love with the SR60's, which I now keep at work. I've never found them tiring, but I probably don't listen for more than an hour at a time.