I call BS OR he is retarded- you will not regret getting the M80s. I own them as well as the Sennheiser HD600s and while the 600s are better sounding, the M80s are more versatile and sound pretty damn good! I listened to the Solos and my M80s side by side and it wasn't even close- Solos are crap! M80s are better than the Studios as well. The Pros do sound pretty good compared to the M80s, though it is close.