AUDIO-GD D77 Dac Sabre 2x 9038 Pro (2021) D 77

AUDIO-GD D77 Dac Sabre 2x 9038 Pro (2021) D 77

€1,210.00
Tax included

(Dual ES9038Pro +1 FPGA )

Dedicated Discrete Fully Balanced DAC
Built In FPGA Processor to Reject Jitter 
Dual Sabre ES9038Pro
DSD , DXD 32bit / 384K Support From USB / HDMI
Built with OCC and Hi-end parts

Quantity
Last items in stock

 

WARRANTY2 years warrantyDedicated support

 

EASY RETURN 14 days satisfied or refunded

The different between dual ES9038 Pro and single ES9038 Pro is large:
                The different not only the DNR, but the dual ES9038 Pro working under mono mode, the channel crossing is improved for offer a larger and exact sound stage.
NFB777specs.png
 
            Even the ESS9028 Pro, working under mono mode, its DNR had 3DB better than one ES9038 Pro .
9028.png

The FPGA is important in the D-77:
           
1, Separate the data feed to dual ES9038 Pro for working in mono mode.
           2, Clock re-clock process and FIFO design for all inputs , the output data can exact synchronisation with clock signal, reject jitter.
           3, Built in high performance SPDIF interface , bypassing  low performance SPDIF interface of the ES9038 Pro .
What is  the FPGA duty  in the D-77:

           
1, Separate the data feed to dual ES9038 Pro for working in mono mode.
           2, Clock re-clock process and FIFO design for all inputs , the output data can exact synchronisation with clock signal, reject jitter.
           3, Built in high performance SPDIF interface , bypassing  low performance SPDIF interface of the ES9038 Pro .

Full discrete output stages:

          
 The signal last stage is  the analog output stags , they greatly  effect the whole DAC sound quality.
           The output stages working after ES9038 pro, they are full discrete transistor built with hole parts but not SMD parts .
           The high speed ACSS amps work as the signal gain and processing , they are of non feedback design and working in  current signal mode  . the dual ES9038 pro output [current signal] goes through the ACSS amp .
           In our design  output stages  working in pure class A , and without any negative feedback for the most pure and life like  sound reproduction .
           There are 4 pcs OPA built in as DC servo , so the DAC can be  working well without coupling caps  and output the most neutral sound.
NFB1s.JPG

Heavy power supplies design:
           There are in total 16 groups PSUs . 
           A total 13 groups of ultra speed linear PSUs  (dual stages PSU to  remove the power interruptions ). PSUs deliver cleanest power  to allow  digital circuits working under best conditions .
           2 groups of pure class A PSUs to  power  to the analog circuits and deliver most  analog sound .
           The control and display circuits are powered by a separate PSU  to  avoid adding any additional noise to the rest of the circuit.
 

S/N Ratio
>120DB  (XLR output)
 

THD
 
<0.0003%  DAC9077THDs.JPG

Output impedance
 
4.7 ohm 

Output Level
 
2.5V (RCA)
5V (XLR)
2+2MA (ACSS)
Input Sensitivity
0.5 Vp-p(75 Ohms, Coaxial)
19 dBm (Optical) 
 
Frequency Response
20Hz - 20KHz (< - 0.1DB)
 
DAC90773FRs.JPG

Support Operate Systems (USB)
 


Windows , OSX ,Linux, ISO
 

Support Sampling  
 
PCM of USB and I2S: 44.1kHz-84kHz
DSD of USB and I2S: DSD64-512
 Coaxial model: 44.1kHz-192kHz 
Optical model: 44.1kHz-96kHz 
 
Power Requirement
 Version 1: 100-130V  AC 50/60 Hz
Version 2:  220-240V  AC 50/60 Hz
 
Power Consumption
30W
 
Package Weight
Approximately 5.5KG
 

Dimensions
 
W240 X L360 X H80 (MM, Fully aluminium )  
Accessories


AC power cord            X1
USB cable                X1

1 Item

Specific References

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AUDIO-GD D77 Dac Sabre 2x 9038 Pro (2021) D 77

(Dual ES9038Pro +1 FPGA )

Dedicated Discrete Fully Balanced DAC
Built In FPGA Processor to Reject Jitter 
Dual Sabre ES9038Pro
DSD , DXD 32bit / 384K Support From USB / HDMI
Built with OCC and Hi-end parts

Write your review