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GND Defender
Ground control to Major components.
The optimum configuration for each system is one Ground/Earth for the whole system. If a system has multiple Grounds/Earths, then it often creates unwanted ground loops. These systems will then have an annoying low-frequency hum (emitted from the speakers).
Current solutions either jeopardise (i) both safety and EMI shielding (e.g. cheater plug), or (ii) EMI shielding. And most are single country (US) uses only.
The GND Defender in the correct way, intelligently detects a ground loop and will cut the ground for that component.
Key Features
Intelligent Detection
With a GND Defender at the IEC power input, it will intelligently detect and remove the ground loop at the component.
EMI Shielding
The GND Defender device safely retains its EMI shielding.
Global Usage
The GND Defender can be used all over the globe.
Battleship build.
The GND Defender is not only at the cutting-edge in terms of technology but also safety:
- High-performance glass passivated semiconductor
- High Case Dielectric Strength of 1500VRMS UL Listed
- X7R Capacitor
Intelligent ground detection.
The GND Defender:
Intelligently breaks DC ground loops to eliminate ground loop hum
- EMI shielding is retained
- Equipment Safety is unaffected (not a ground lift – so maintains equipment safety ground)
If multiple ground loops exist, more than one GND Defender may be required. The GND Defender is smarter than the average ground lift. By a long way.
How do I use?
Insert the GND Defender into the device and the connect the external device into the GND Defender.
What is in the box?
1x GND Defender
1x User Manual
Specifications
Intelligent Ground Detection
Each unit will automatically disconnect the ground on that device
Ground Safe
Auto reinstatement of ground connection to pass current if a fault is detected
Voltage rating
90 – 240 volts
Surge overload rating
220A.
Continuous current rating
10A (1100W – 2400W)
Universal IEC
Hospital-grade IEC connectors
Dimensions
68 x 37 x 32 mm / 2.7” x 1.5” x 1.3”.
Weight
61g / 2.2oz.
Frequently Asked Questions
What is it?
The GND Defender is a ground lift device. It inserts resistance between the mains earth and your equipment ground. It is meant to eliminate ground loops in your audio setup, that often lead to audible hum on your speakers.
What does it do?
It aims to reduce the effect of ground loops in a system. If more than one audio device in your system is earthed to the mains, you may experience hum and/or buzz. By isolating one of the grounds you may reduce the amount of hum in the system.
How do I know if I need one?
If you’ll hear audible hum on your speakers or headphones, this is due to a ground loop in your setup and our Ground Defender was designed to eliminate this unpleasant noise.
How do I turn it on?
You don’t, it’s a passive component that does its job upon connecting it right in-between a power cable and audio product powered by it.
How is an earth loop formed?
Sound systems can range in scale from being simple to very extensive. Generally the more components that are earthed in the system, the more likely an earth loop will develop. It forms when there is more than one path for the audio ground or shield signal to flow through. For example, if a system consists of a preamplifier and power amplifier connected by RCA interconnects, and both the power amp and preamp are earthed to the mains, there are two paths for the ground signal to flow. One through the shield and return wire in the interconnect, and the other via the mains earth in the power board or house wiring and the two equipment earth wires.
Here is where the GND Defender can be of assistance. By inserting it into the earth system of the second (or more) low-resistance earthed component, you may reduce the effect of the earth loop, evidenced by a reduction in hum or buzz
Is it safe to use?
Yes, our GND Defender is safe to use as it is a fireproof product.
Is it similar to your iDefender+ for USB?
The core operation principle of our Ground Defender is the same, but this one was designed to work with AC line.
Will it negatively affect an audio product in any way?
If anything, our Ground Defender will improve a connected component’s sound quality past eliminating a ground loop.
