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The iFi Audio iDefender+ enhances the USB connection between streamers, DACs, computers, and laptops by intelligently isolating the different grounds in USB devices, thereby preventing ground loops.
When multiple powered USB devices are used with a computer, laptop, or within your audio setup, it's possible that the ground levels of these USB devices don't perfectly align to exactly 0 volts. These slight discrepancies can lead to ground loops. Unlike the consistent hum found in analog circuits, a ground loop in digital connections like USB primarily results in increased noise and a reduction in both resolution and dynamics of music playback. Simply incorporating an iFi iDefender+ into your USB chain can quickly resolve these issues.
For USB-powered devices, such as a USB DAC used in conjunction with a laptop or PC powered through the USB port, you won't experience issues with ground loops. However, you might still face issues with noisy power lines from the PC. In this scenario, the iDefender+ offers a solution as well. Through its secondary USB-C port, you can connect your USB DAC to an external power source that provides clean, unpolluted power. Consider using the iFi iPower X power supply, specifically designed for this purpose. This setup can significantly enhance the sound quality of your trusted USB DAC.
