I heve a NH900 (and voted for that) , and I'm quite pleased with it. However, it cost me a lot of money back then and as it was the "high-end" model, I expected some high-end features: - sadly, there is no optical output, but that problem's solved now with HiMDrender I guess. - As someone said, the Digital Amp actually sucks. You hear the metallic, artificial sound immediately. So I turn it always off, and I've bought some good bassy headphones.