I owned an Sflo2 before but received 2 consecutive defective units and MP4Nation was never able to get me a properly working unit. I compared the 601 side by side with the Sflo2 when I had it and I found the 601 to be superior. I no longer had a reason to keep the Sflo2. Not to mention it took 8 hours to fully charge when it should only take 4 hours. The Sflo2 is too digital sounding (un-natural and fake sounding) when compared to the Hifimans effortless and smooth-organic sound.
Edited by lee730 - 11/22/11 at 7:00am