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
Advertisment	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