iFi Audio iDefender

iFi Audio iDefender

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iFi audio iDefender


iFi Audio iDefender3.0 External USB
Ground Loop Eliminator

Tired of doing battle with buzz, hum, and hiss?

  • Our iDefender3.0 is for those struggling with noisy audio due to unwanted ground loops in their audio chain.


Bah humbuzz!

  • Annoyed by hum and buzz invading your listening?
  • Using multiple plugs means separate earth points. These multiple earth or ground points cause earth/ground loops and create an unwanted chain of noise, buzz, and distortion.




Ground Loops - In an electrical system, a Ground or Earth loop occurs when two points of an audio system both have a ground reference which causes a 'potential voltage difference' between them. Ground loops are a major cause of the noise, hum, and interference in audio, video, and computer systems.

Break the earth loop

  • The iDefender3.0 plugs into your computer USB port and auto-detects if there is more than one earth and will ‘intelligently’ disconnect the computer earth for a cleaner sound.

iFi audio iDefender

Using a USB DAC?

  • If your DAC is USB powered, the iDefender3.0 requires an external 5 volts to break the earth. It works pretty well with our 5-volt iPower (just saying!). Injecting clean power will ensure you get the maximum out of your USB audio.








  • Kills USB power noise by ‘breaking’ the earth/ground loops in the correct way.
  • It significantly reduces the system noise floor and makes for better dynamic contrast, warmth, and resolution.

  • Inject 5 volts of clean power clean via the ‘separate’ micro port. This disconnects the USB power from the PC and replaces it with clean external power. For ultra-low noise, use our 5-volt iPower.
  • Adding the separate 5 volts to the iDefender3.0 is necessary to ‘break’ the earth/ground on USB-powered DACs. This is not required for DACs with an internally powered USB section.




  • So, why USB3.0? USB3.0 allows for a greater amount of audio transfer due to the better wiring specification. It is still backward compatible with USB2.0.


Specifications

  • Super-Speed USB3.0 (and USB2.0 backwards compatible)
  • Connec­­tors: USB3.0 gold-plated connectors
  • Dimensions: 48 (l) x 18 (w) x 8 mm (h)
  • Weight: 6.5g (0.23oz)
  • Warranty period: 12 months



Specifications

  • Super-Speed USB3.0 (and USB2.0 backwards compatible)
  • Connec­­tors: USB3.0 gold-plated connectors
  • Dimensions: 48 (l) x 18 (w) x 8 mm (h)
  • Weight: 6.5g (0.23oz)
  • Warranty period: 12 months
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