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RE: USB Ports sound different...

Posted by AbeCollins (A) on November 4, 2017 at 11:23:46

In Reply to: USB Ports sound different... posted by beautox on November 3, 2017 at 13:56:08:

Even though you may not have external devices connected to a given USB port, that port may still share a USB channel with some internal devices (IR receiver, bluetooth audio, bluetooh mouse/keyboard, SD card readers, etc.).

On the Mac there's an easy way to tell what devices are associated with a particular port. The trick is to attach your DAC to a USB port that is 100% dedicated to the DAC only. There should be a way for you to determine this on your PC as well. I haven't examined the USB bowels of a PC in years so perhaps someone else can elaborate. I'm guessing the details may reside in device manager.

USB device tree on my Mac Mini . As you can see, the Oppo DAC is on it's own dedicated USB 2 Hi Speed Bus. That Inateck Generic USB Device on the USB 3 SuperSpeed bus is an external solid-state disk. There are other devices associated with the other ports. Again, the trick is to put your USB DAC on a dedicated USB channel not shared with any other devices, internal or external.

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