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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        FPGA firmwares download

Audio-gd headamp product models had high power output and high gain, they are not suited in ear headphones.

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

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

Italy
http://www.spiritsoundstore.com
Malaysia
https://shopee.com.my/starspicker
Vietnam
Tel: 0919019298
https://www.facebook.com/
HeadWorldAudio

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

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

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



 

Digital Interface
 

DI-20

DI-20HE


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

R2R 11
Single Ended All In One

R-28
Balanced All In One

R-27
Balanced All In One


R-2R Resistor Ladders Dedicated DACs
 

R-1
Balanced DAC

R-8
Balanced DAC

R-7
Balanced DAC


Regenerative Power Supply R-2R Resistor Ladders Dedicated DACs
 

R-8HE
Balanced DAC built in regenerative power supply

R-7HE
Balanced DAC built in regenerative power supply

DAC-19
PCM1704UK DAC

 


ES9028 & ES9038 DAC/headamp/Preamp All In One
 

NFB-11.28
Performance Edition

NFB-11.38
Performance Edition

D-28
Balanced

D-27
Balanced


ES9028 & ES9038 
Dedicated Balanced DACs
 

D-77
Dual ES9038

NFB-7.77
Dual ES9038

AS-1
Ultra low distortion Dual ES9028

 


Headphone Amps And Preamp
 

A 2
Single ended

NFB-1AMP
Balanced

Master 19
Balanced

Master 9
Balanced

HE-9
Balanced and regenerative power supply


Dedicated Preamp
 

Master 1
Balance preamp

HE-1
Balance preamp built in regenerative power supply

Vacuum 1
Tube Preamp

Vacuum HE1
Tube Preamp built in regenerative power supply

 


Power Amps
 

Precision 3
Single ended amp

A1
Balance amp

Master-10
Balance integrated amp

Master-3
Balance amp

Master-2H
Balance mono amp

 


Cables
 

     


 

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