Wyred 4 sound vs Audio gd dacs


It does not seem that a lot of people on audiogon have discussed the Audio GD dacs. They get a lot of respect on the Headfi sites. I am interested in them because they have the same Sabre32 ES9018 DAC chip as the wyred dacs and the Eastern electric minimax dac. Has anybody directly compared these to the W4S? Specifically the NFB-1 NFB-7 & NFB-8 look pretty good and comparable.

http://www.audio-gd.com/Pro/DACsEN.htm
dcj98gst
I´m also interested in Audio-GD DACs. Anyone compared to W4S or anyother DAC?
I had the Audio GD Ref. 7 v5 in the house for a couple weeks. This dac is the real deal at it's price range. I need a digital pre so the PS Perfectwave or Antelope Zodiac will be next up. For those having need for the latest/greatest may not like A gd as the Ref. 7 is now discontinued. They bring out products so often you can't stay on the crest of technology.
Happycamper,you say that Audio-GD is the best sounding DAC for the money but you want a digital preamp so it doesn´t suit you?

What DACs did you compare the REF7 to? A/B or from your experiences. Thanks.