Hey 669 owners, glad I'm not alone. I just let the packaging box enjoy the 669 all day long (stretched over it). 3rd day now, still tight as hell. A bit bad when youre wearing glasses.

Regarding, sound quality, the only other stuff I have is a hippo pearl. Can't say it's a huge improvement. Maybe not enough power to drive? I tried output from xperia arc and pc. PC is slightly better but not much. Still need close to 90% vol. Those 1080p videos, downmix to stereo....next to no volume, lol. Only mp3 and flac can be used.

Has anyone tested with an amp and which model?

Thanks for sharing.

@trio: tested on a Creative 5.1 PCI card, and on board AMD E350, Realtek HD. What would you recommend?