While I am still figuring out the best configuration for my DI + NFB-1 and whether to buy the NFB-11, it comes the NFB-10
http://www.audio-gd.com/Pro/Headphoneamp/NFB10XLR/NFB10EN.htm
It got the "dream combination" of ACCS/Balanced preamp/Balanced headphone amp/Sabre32.

























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