[cvbowlr]

I've had my pair of HD 650s for a little over a year but never got around to getting an amp for them until now. My NFB-12 arrived today and running it through optical. All I can say is wow what a difference. I can't believe I waited this long to purchase an amp. I feel like I've never even used the 650s before. Extremely happy with my purchase and I would like to thank head-fi for suggesting the NFB-12.

 

[brendon]

Yes, the HD650 can really wow you when you upgrade to better stuff.

The worst part is that it scales even better with better gear so if you buy a better DAC/AMP it will sound even better. Bad for the wallet.