Uploaded March 2024 | Updated September 2026, 2 weeks ago

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Are cheap power supplies any good for audio testing? In this video I compare the Hanmatek HM310 power supply to an HP 6643A. I measure the load regulation, step response, and how the power supply performs when powering an audiophile power amplifier. I also torture test the supply to see if we get what we pay for with this $80 power supply.

Hanmatek HM310: amazon.com/Adjustable-Disable-Variable-Switching-Digital/dp/B087TK6ZM2