iFi iDefender Max

Pure, Pristine Sound Awaits.

Intelligent USB-C ground loop breaker

Eliminate distracting hum and noise in your computer-based audio system.

We know how crucial it is for you to disconnect and immerse yourself in your favourite music. Whether you’re relaxing after a long day or losing yourself in the rhythms of your favourite songs, the clarity of your audio is paramount.

However, excess earth connections  from using multiple plugs within your audio setup often introduces ground loop noise , causing irritating hum in your speakers or headphones – significantly detracting from your listening experience.

The iDefender Max intelligently removes unwanted earth connections to resolve annoying ground loop hum, bringing you closer than ever to the music you love.

Key Features Explained

IsoGround® Technology

IsoGround Technology intelligently removes the earth connection without compromising equipment or user safety.

USB Noise Termination®

The input of the iDefender Max effectively removes noise from USB power at the source.

External USB-C Power Input

A USB-C power input that bypasses USB power from the PC, which you can replace with a clean external power supply.

Retaining Safety

Current surges typically occur due to short circuits, overloaded devices, power supply issues or poor-quality cables and connectors. All lead to an unexpected and sudden increase in current flow. Unlike other ground-lift solutions, the iDefender Max eliminates ground loops without compromising equipment safety. It intelligently and automatically reestablishes the earth connection when a current-related fault is detected, ensuring excess current is directed to the earth rather than to the connected equipment.

Perfect Pairing 

The iDefender Max supports input power up to 100W (20V/5A), making it compatible with a wide range of devices and removing it completely from the confines of mere USB DAC applications. With support for USB 3.0 and backwards compatibility with USB 2.0 the iDefender maintains high-speed data transfer and playback of high-resolution audio files, regardless of their quality or file size.

Unleash the Power

The iDefender MAX provides you with the option to further upgrade performance, with a dedicated external power input that completely bypasses the USB power supplied from the connected PC - allowing you to use an audiophile-grade power solution such as our iPower2. The iFi iPower2 is an ultra-quiet, ultra-clean audiophile-grade power supply, featuring our proprietary Active Noise Cancellation II technology to cancel out all incoming extraneous noise. This technology allows it to be more than 10 times quieter than typical audiophile power supplies.

How do I use?

iDefender Max

Connect the iDefender Max between your computer and your USB devices to eliminate ground-loop noise.