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Firmware update
For the models earlier than 2020 year, include R 7, R2R 7 and R7HE, fixed the noise when the HDMI/RJ45 without connected but select the to these inputs.
The 2020 model R7 and R7HE already include this feature, don't need update.
Firmware download link



Master 2A

100W Pure Class A Mono Power Amplifier


Latest Reviews

R-1 review

AS-1 review

R 27 review

Vacuum HE1 review

Master 1 + Master 2H review

Master 19 review3

R-7 review1

R-7 review2

Master 19 review1

Master 19 review2

R-7HE review

D-28 review1

D-28 review2

HE-1 review

NFB-28 review

Master 10 review

NFB-1AMP review1

NFB-1AMP review2

R 8,Master 1+3 review


About Audio-gd :
            All Audio-GD’s products are designed and developed under the leadership of Mr. He Qinghua, the “First Prize Winner” of the National Semiconductor (USA) Audio Design Contest.
           With strong research and development capability in audio technology, Audio-GD offers a complete series of Hi-Fi equipments - DAC, preamplifier and power amplifier - with our signature “Audio-GD Current Signal System“ (ACSS) technology. Our ACCS technology transmits all audio signals via “Current” domain which offers the least colored, most detailed and neutral sound. In addition, we also master advanced audio technologies like power regeneration technology and full balanced audio technology. Our technology is on a par with the international famous audio equipment manufacturers.
           Audio-GD has been growing steadily over the years and is renowned amongst local and foreign customers. We insist on the build quality with no compromise. To ensure the best quality, every technician of our company is not only well experienced but also a Hi-Fi lover.



Our Principles:
           1. All our products are hand-crafted by well experienced technician. Quality is being our first priority without sacrificing efficiency.
           2. All our products undergo more than 100 hours of burn-in, listening and thorough testing.
           3. All components are carefully paired to obtain the finest sound.


The Products Have 10 Years  Repair Guarantee


 

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