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<blockquote data-quote="Alan Geering" data-source="post: 60497" data-attributes="member: 2093">re: X32 DiscussionI have had this before with a couple of laptops whilst feeding audio to mixers. The worst day was when using a cheap aftermarket power supply. Using battery was the solution as I didn&#039;t have any isolation transformer to test. The dell original power supply I tested the next day was fine.Remember the laptop isn&#039;t earthed in the same way as the mixer. I have seen small sparks between VGA cable shields and laptops due to the potential difference between the laptop &quot;ground&quot; and the actually grounded equipment it was being connected too. Ethernet was not a problem as the standard is designed to be more immune to these issues. USB however being designed for short distance and power is different.Try a different PSU first. If that doesn&#039;t work there may be some other options.</blockquote>

[QUOTE="Alan Geering, post: 60497, member: 2093"] re: X32 Discussion I have had this before with a couple of laptops whilst feeding audio to mixers. The worst day was when using a cheap aftermarket power supply. Using battery was the solution as I didn't have any isolation transformer to test. The dell original power supply I tested the next day was fine. Remember the laptop isn't earthed in the same way as the mixer. I have seen small sparks between VGA cable shields and laptops due to the potential difference between the laptop "ground" and the actually grounded equipment it was being connected too. Ethernet was not a problem as the standard is designed to be more immune to these issues. USB however being designed for short distance and power is different. Try a different PSU first. If that doesn't work there may be some other options. [/QUOTE]

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