Before I even knew headphone forums existed, I was loving my 580s and microamp. At my first meet, I heard the 650s for the first time, and that was it for me, or so I thought. I eventually settled on the 600s, but the 800s do everything they do better, even with a laptop and pico. Properly matched, I still think the 650s are some of the most amazing headphones around, but I'd like to hear the 800s again when folks have found what rigs really work best. Despite the love/hate reactions people seem to have over these headphones, I do think Sennheiser got it right.