iFi SilentPower iDefender Max

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 favorite music. Whether you’re relaxing after a long day or losing yourself in the rhythms of your favorite songs, audio clarity is paramount.

However, excess earth connections from multiple plugs in your audio setup often introduce 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.

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 bypasses USB power from the PC, allowing you to replace it 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, leading to an unexpected 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 extending its utility beyond mere USB DAC applications. With support for USB 3.0 and backward 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 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 makes it more than 10 times quieter than typical audiophile power supplies.

How to Use

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

What's in the Box?

• 1 x iDefender Max
• 1 x Instruction Card

Specifications

• Input/Output: USB-C
• Compatibility: USB 3.0
• Max. Power Support: Up to 100W (20V/5A)
• Dimensions: 51.3 x 20 x 12mm (2.0 x 0.8 x 0.5”)
• Net Weight: 21g (0.74 oz)
• Limited Warranty: 12 months