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Built in USB interface introduce and driver download:
On sale product driver download:      Amanero combo 384
Discontinued product driver download:      USB-32         Xmos U208

 

Discontinued Products

 

FPGA firmware update file download 
The FPGA update tool Quartus II install guide
Amanero firmware update guide

Worldwide Agents:
1. We provide worldwide email technical enquiry and support - audio-gd@vip.163.com
2. Products purchased from our worldwide agents could obtain free local warranty service. For details, please visit the corresponding website below.

Netherlands
http://www.magnahifi.com

France
http://www.audiophonics.fr

Italy
http://www.spiritsoundstore.com

Poland
http://www.4HiFi.pl
 http://www.interprojekt.pl

Russia
http://patefon.ru/brands/audio-gd

Ukraine
https://era-in-ear.com/shop/brand/Audio-gd

Romania
http://www.audioalchemy.ro

Slovak and Czech Republic
https://tmsound.sk/#Hi-fi

 

USA
https://www.underwoodhifi.com
/products/audio-gd

Malaysia
https://shopee.com.my/starspicker

 

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Vintage Audio World
http://www.vintageaudioworld.com/products/


Please note : The products have the blue and white display , shipping at random until all products with white display.

Foobar2000 setting guide for play PCM384 and DSD512:      Click to download

 

Digital Interface
 
DI-20HE


 


R-2R Resistor Ladders DAC/Headamp/Preamp All In One
 
R2R-11 mk2

Single-Ended All In One
R-28
(2022 Edition)

Balanced All In One
R-28 NOS

Balanced All In One
R-27 MK2

Balanced All In One

Real Balanced R-2R Resistor Ladders Dedicated DACs
 
R-8 MK3 R-8HE MK3

Regenerate Power Supply

R-2R Resistor Ladders decent DACs R-2R Resistor Ladders  All In One
R-7HE MK3 HE-7 MK2
PCM1704UK DAC

R-27 HE

R-27 RE


 


ES9028 & ES9038 DAC/headamp/Preamp All In One
 
NFB-11.28
Performance Edition
NFB-11.38
Performance Edition
D-28
Balanced

Out of stock products
 
R-1
(2021 Edition) Out of stock
R-7 MK2 Out of stock DI-20 Out of stock D-77 (2021 Edition) Out of stock
Dual ES9038

 


Headphone Amps And Preamp
 
HE-9 MK3
Balanced  regenerative power supply
HE-9 MK2
Balanced  regenerative power supply
HE-9 LE Master 9P MK2
Balanced headphone amp and power amp
Master 19
Balanced

 


Dedicated Full balanced Discrete Preamp
 
Dedicated Full balanced Vacuum Preamp
HE-1 MK3
Regenerative power supply
HE-1 MK2
Regenerative power supply
HE-1 LE Vacuum HE1
Regenerative power supply
Vacuum HE1 LE

 


Integrated Power Amps
 
Power Amps
Master 9P MK2
Balanced headphone amp and power amp
Master 10 MK2
Balance integrated amp
A1
Balance amp
Master-3A
 (50W Pure Class A)
Master 2A
(150W Pure Class A)

Regenerate Power Supply Power Amp
 

HE-2 MK2
Regenerate Power amp

 

Cables

Analog cables

Digital cables

Speaker cables

Power cables


 

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