gto88 said: So, the new NFB-1AMP is replacing NFB-6, and its power spec is very similar as power amp part of NFB-28.

Its web. says its discounted for pre-order, but not saying how much, any idea? Click to expand...

I have no idea haha, I'm not an insider really so dunno how much preorders are saving.But yeah the NFB-1AMP is replacing the old NFB-6 and there are a few changes/improvements.SNR 125dB vs 120dB (5dB improvement)100 steps volume control vs the old 80 stepsNew NFB-1AMP only has one gain setting (+16dB), old NFB-6 had two gain settings (0dB low gain and 9dB high gain), hard to say if this was an improvement or not (depends)Exponential Volume Control available on NFB-1AMP which used to be exclusive to the C-2, Master-9, HE-9, Ref 10.32, and NFB-27 (basically the TOTL models)Lower THD, this is inferred since there was no THD plot on the NFB-6. The THD plot looks impressive as hell.There might be a few things I missed, but basically these are all the things I ever wanted in an amp, for me this is pretty much perfection. Once I get this, I am done with amps (famous last words lol). I'm glad I held out, there was a reason why I didn't go for the Gustard H10 (or the NFB-6) despite already owning the Gustard X12 + U12. The NFB-1AMP is basically a mini-Master 9. I feel that Audio-GD genuinely made the best amp they could for the price, no intentional feature cuts, no gimping the design to force a price structure.IMO, the relay attenuator volume control and excellent channel balance on the Audio-GDs truly distinguish them in the audio realm. This is a feature usually found only on amps USD 1,000+ amps, and even then there are a bunch that are still using ordinary alps blue at that level. By comparison the Violectric V281 relay attenuator upgrade costs $579.95 alone, more than the cost of the whole NFB-1AMP. Crazy value.