iFi iDefender3.0 External USB Ground Loop Eliminator
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.
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 cleaner sound.
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.
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 X.
Adding the separate 5 volts to the unit 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 backwards compatible with USB2.0.
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.
Features & Specifications
|Who is it for?||Generalist-for reduced USB port noise||Specialist-for breaking Ground loops
Also inject clean 5v via additional iPOWER
(External power supply needed for iDef3.0 to break the Ground when USB-powered DAC is used. Not required if USB is internally-powered by DAC.)
|USB standard (max)||USB3.0 Super-speed 5Gbps||USB3.0 Super-speed 5Gbps|
|Active Noie Cancellation||Yes||–|
|Inject 5v for clean power (iPOWER rec. )||–||Yes|
|Dimensions||48 (l) x 18 (w) x 8 mm (h)||48 (l) x 18 (w) x 8 mm (h)|
|Weight||6.3g (0.22 lbs)||6.5g (0.23 lbs)|