Hey there @ra990, I checked with the engineers and here's what they had to say:
"The quality and length of the USB cable has a great impact on sound quality, even for digital signals. We recommend to use a shorter USB audio cable with utmost quality. The CMA Fifteen's USB power supply is provided directly from the CMA Fifteen's motherboard, as to better avoid interference from external power sources. And on other note, just for the record, the optical input can support 44.1kHz to 192kHz flexibly, depending on the source material."
The engineers didn't mention anything about the galvanic isolation, perhaps my mistake for not translating that word precisely enough haha
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"The quality and length of the USB cable has a great impact on sound quality, even for digital signals. We recommend to use a shorter USB audio cable with utmost quality. The CMA Fifteen's USB power supply is provided directly from the CMA Fifteen's motherboard, as to better avoid interference from external power sources. And on other note, just for the record, the optical input can support 44.1kHz to 192kHz flexibly, depending on the source material."
The engineers didn't mention anything about the galvanic isolation, perhaps my mistake for not translating that word precisely enough haha
Did that answer your question?
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