iFi Audio iDefender+ USB Noise Cancelling Device
Frequently Bought Together
Product Overview & Specifications
Tired of doing battle with buzz, hum and hiss?
iFi's iDefender+ 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.
Break the earth loop
The iDefender+ 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 iDefender+ requires an external 5 volts to break the earth. It works pretty well with iFi's 5-volt iPower (just saying!). Injecting clean power will ensure you get the maximum out of your USB audio.
Features
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 iFi's 5-volt iPower.
Adding the separate 5 volts to the iDefender+ 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.
Ground loop elimination
The iDefender+ effectively eliminates ground loops that cause noise, distortion and interference in audio and computer devices. A major cause of these ground loops are the use of multiple plugs which create separate earth/ground points that result in unwanted noise.
Auto-detection of multiple earth points
Simply plug the iDefender+ in to your computer device's USB port and it will automatically detect if there is multiple earth's and will intelligently disconnect the computer earth for a much cleaner sound.
Use with USB Dac
The iDefender+ 3.0 can be used in conjunction with a USB DAC by adding an external 5 volts to break the ground/earth. This 5-volt iPower replaces the power from the PC with clean, ultra-low noise power.
Technical Specifications
| upper-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 |
| Optional: The Groundhog+ puts an end to never-ending buzz and hum by earthing your audio system and adding resolution, bass and musicality to your music. |
Manufacturer Site
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iFi Audio iDefender+ USB Noise Cancelling Device
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