What's your thoughts about this "star grounding" design?

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Saw a interesting boards today, the GND design follows the "star grounding" rule ridiculously. What's your thought about grounding of audio amps? I had surfered by the noised in my early audio projects. Even now the problem are not 100% solved.
 

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Non of the audio products are designed by us. Only some of them are manufactured by us. We have strong design capability but they design DSP, embedded systems, development tools etc. No audio designers at this moment. Maybe will have in the future but we just sell product of other companies now.
 
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