iFi GND Defender
Best solution for audiophiles struggling with persistent speaker hum.
The iFi GND Defender is designed to eliminate annoying low-frequency hum caused by ground loops in audio systems. It intelligently detects and disconnects problematic ground loops without compromising safety or EMI shielding. This device ensures a cleaner audio signal by interrupting DC voltages from the mains, preventing transformer hum. With a robust construction featuring fire-resistant components and high dielectric strength, the GND Defender is built for reliability and safety. It supports global voltages and has a high surge overload rating, making it a versatile solution for various audio setups.
$99.00
Owner Satisfaction
4.5
/ 5
Category Rank
131
/ 221
#131 in Electronic Filters
Price vs Category Average
-59%
Below average
AI Ground Detection
.
/ Each unit automatically disconnects ground on that device
Who it's for
- Audiophiles frustrated by persistent ground loop buzzing
- Listeners seeking maximum clarity and dynamic range
- Users wanting an effortless, plug-and-play audio fix
Who should skip it
- Listeners dealing with non-ground loop interference issues
- Owners of systems already free from electrical noise
- Minimalists prioritizing a clean and clutter-free setup
Performance breakdown
Hum Elimination
Effectively silences persistent ground loop noise in sensitive audio chains.
Safety Integration
Maintains essential grounding protection while isolating problematic electrical loops.
Build Quality
Robust fire-retardant materials ensure long-term reliability in demanding power environments.
Compatibility
Universal voltage support makes it a versatile fix for global setups.
Ease of Use
Plug-and-play design requires zero configuration for immediate noise reduction.
Power Handling
Handles standard high-current audio equipment with a generous surge rating.
Key Specs
AI Ground Detection
Each unit automatically disconnects ground on that device.
Safe Ground
Automatic ground connection reset to pass current if a fault is detected.
Voltage
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
61 g / 2.2 oz
Features
- Intelligently detects and eliminates ground loops to remove hum from speakers and transformers.
- Preserves EMI shielding for continued protection.
- Maintains equipment safety by not lifting the safety ground.
- Handles all global voltages from 90-240V.
- Features a high-performance glass-passivated semiconductor and a high dielectric strength case.
- Includes a fire-resistant IEC socket/connector/chassis and UL94-V0 rated fire-retardant polymers.
What customers say
Customers consistently praise the iFi GND Defender for its remarkable effectiveness in eliminating unwanted hum and ground loop noise from audio systems. Many users report a significant improvement in sound clarity, highlighting its ability to deliver a cleaner listening experience. Its plug and play simplicity is frequently noted, making it an incredibly easy solution to integrate into various setups without complex adjustments. This device is widely appreciated for reliably solving a common audio issue.
Know before you buy
No. The device is designed to intelligently disconnect the ground loop while maintaining the safety ground. If a fault is detected, it automatically resets to ensure current can pass safely through the system.
Yes, the GND Defender supports global voltages ranging from 90V to 240V. It features a universal hospital-grade IEC connector, making it compatible with most standard audio equipment worldwide.
The device has a continuous current rating of 10A, which supports power draws between 1100W and 2400W. It is suitable for most integrated amplifiers and power amps, but you should verify your equipment's power consumption before connecting.
A ground loop typically manifests as a persistent, low-frequency hum or buzz coming from your speakers or transformer. If this noise disappears when you disconnect other components or cables, the GND Defender is likely the correct solution.
No, the GND Defender is specifically engineered to eliminate ground loops while preserving the integrity of your equipment's EMI shielding. This ensures your signal remains protected from external electromagnetic interference.
Yes. It is constructed with fire-resistant components, including a UL94-V0 rated chassis and high-dielectric strength materials, making it safe for continuous, long-term use in your audio rack.
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$99