Soncoz SGA-1 Headphone Amplifier Review

Thank you to HiFiGo for sending me the Soncoz SGA-1 headphone amplifier for review. Could this be one of the best value headphone audio amplifiers available? I tested them with some of the best high-end headphones available.
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00:00 Start
01:04 Inputs and Outputs
02:32 Functionality
05:02 Sound Impressions
10:30 GS-X Mini comparison
11:26 Different Sources
12:13 Conclusion