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Audio-gd 10 product

order now only USD630 (With remote control ,exclude shipping cost) !
　

NFB-10ES3
Upgrade from NFB-10ES, with remote control
Discrete  DAC+ Headphone amplifier / Preamplifier

32bit / 384K Asynchronous Transfer  USB-32 Chip
32bit / 192K Sabre ES9018
Price:    (Free remote control )   
Extra metal remote :  USD50        
Accessories : Power cable and USB cable . If customers want optical cable please inform while place the order . The free remote control without warranty. )

USB-32 Introduce and drivers download
Reviews :   http://www.head-fi.org/products/audio-gd-nfb-10es2-balanced-desktop-amp-dac/reviews/9481

What's improved  in the NFB-10ES3 from the NFB-10ES?
1,  NFB-10ES2 : Built in USB-32 ,support up to 32bit 384K asynchronous transfer model , ultra low jitter re-clock ability can cooperate well with ES9018 without sound  drop off .
     NFB-10ES :  Applied the TE7022 support up to 24bit 96K adaptive transfer model .
2,  NFB-10ES2 :  Built in 80 steps relays based volume control .
     NFB-10ES :  Built in 32 steps relays based volume control.
3,  NFB-10ES2:  With full function remote control.
     NFB-10ES: Non remote .
What's improved  in the NFB-10ES3 from the NFB-10ES2?
1, Upgrade the chassis .
2, Upgrade to 4 groups digital inputs (Coaxial RCA / Coaxial BNC / Optical / USB)
3, More outputs ports available in DAC mode and Preamp mode, and they can be connected simultaneously. (XLR*2 , RCA *2, ACSS *1) .
4, OCC wires .

Fully balanced design built by discrete analog stages without any OPA and couple caps in the signal channels , built in real balanced DAC, can output for headphone, as DAC (fixed output ) and preamp (variable output )
Non- feedback ACSS analog output stage .
Applied LED display, avoid the RF disturb as LCD display for better sound quality
R-core transformers and Hi-fi grade parts like DALE resistors, WIMA caps .
Total of 6-group PSUs are used to purify the power supply , the analog amp have discrete PSU power supply
Four-channel digitally controlled relay-based volume control to avoid channel imbalance and improve sound quality. NFB-10ES2 has 80 steps volume level control in both high gain mode and low gain mode. The total 160-step volume control ensures smooth control of the volume level.
4 channels digital input :   Coaxial RCA / Coaxial BNC / Optical / USB
DAC output :   XLR*2 / RCA*2 / ACSS  (User can setting with either variable and fixed output level )
Headphone output : 4 pins XLR / 6.3MM SE
USB Audio Class 2 High-speed Input from Windows / MAC / Linux
Supports High / full speed Asynchronous Transfer Mode up to 384K / 32Bit ability .
Resolutions support 16 / 24 / 32 Bit with sampling rate support 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

If only the RCA or 6.3MM headphone  is used, is the NFB-10ES3 being wasted or not fully utilized?
       NFB-10ES3 is a real balanced DAC . It has balanced output (ACSS, XLR and balanced headphone output) and single-ended output . There are 4 ACSS amplifiers in the NFB-10ES3 for balanced outputs and balanced inputs. Even when a single-ended output is used, the ES9018 DA chips will perform fully thanks to the fully balanced design.
　

Modification guide on headphone jack for 4-pin balanced headphone output.
   Click here to read:   modification guide
Parts for the modification is USD30. (Includes one female 4-pin plug and one male 4-pin plug, some tapes and some  tin solder.)

Feedback from users :

12th Aug , Thierry :

         I received my nfb-10es2 in perfect condition, thank you.
         Sir, I think you are a magician in electronics.
         I had never heard such a sound realism, what truth and the highs are incredibly true. It's a shock for me.
         Thank you again for this great work.