Is the sound of your audio system affected by noise, hissing, buzzing, or humming? The iDefender+ from iFi Audio is designed for anyone dealing with disturbances in the audio signal due to unwanted ground loops in the audio chain. Using multiple plugs in your audio setup means separate grounding points. These multiple grounding points create a ground loop problem, leading to unwanted noise.

Here comes the solution: When the iDefender+ is plugged into the USB port of the source device, it detects whether a ground loop issue exists. The iDefender+ interrupts the ground loop by intelligently isolating the grounding of the computer. It not only eliminates the audible hum of the ground loop but also reduces the system's background noise and enhances the sound resolution and dynamic contrast.

Are you using the iDefender+ with a DAC powered via USB from the computer rather than from the mains or an internal battery? Good news: the iDefender+ offers an additional advantage. When an external power supply is plugged into the USB-C port on the side of the iDefender+, it blocks power from the computer and instead provides the DAC with clean power from the external supply. When using a high-quality, low-noise power supply like the iPower X or iPower Elite from iFi Audio, the audio performance of the USB DAC is significantly improved.

Thanks to the iDefender+, you can enjoy a noticeably enhanced sound quality, as all disturbing noises such as humming, hissing, buzzing, and noise are eliminated. Additionally, the iDefender+ also improves the stability of the USB signal, helping the DAC or amplifier reproduce the signal more cleanly and accurately. It is compact and lightweight, making it easy to integrate into any audio system.