iFi SilentPower USB iPurifier Pro Galvanically Isolated USB Noise Purifier with ANC3
Best audio upgrade for audiophiles seeking pristine, noise-free digital sound.
Elevate your computer-audio experience with the iFi USB iPurifier Pro. This advanced purifier tackles noise and ground loops, separating USB data and power streams for pristine audio. Its Active Noise Cancellation3 technology actively reduces EMI and RFI, ensuring clarity and detail. Compatible with USB 3.0 for high-speed transfers, it also offers a grounding socket for a clean DAC connection. Enjoy deeper insights into your music with this essential accessory for any discerning listener.
$249.00
Owner Satisfaction
4.5
/ 5
Category Rank
134
/ 743
#134 in USB Adapters
Price vs Category Average
+394%
Above average
Inputs
3.0
/ USB-C, USB-B
Who it's for
- Audiophiles seeking a pristine, silent background for critical listening
- System builders struggling with persistent ground loop hum
- Digital listeners wanting to minimize jitter for cleaner audio transmission
Who should skip it
- Budget-conscious listeners building entry-level audio setups
- Owners of high-end components with already clean power supplies
- Minimalists avoiding extra cables and external power requirements
Performance breakdown
Noise Floor Reduction
Active Noise Cancellation3 effectively eliminates background hiss and electronic interference.
Signal Integrity
Galvanic isolation ensures a clean, jitter-free data stream for your DAC.
Ground Loop Suppression
Dedicated grounding port eliminates persistent hums caused by complex system loops.
Data Throughput
USB 3.0 support maintains high-speed performance for demanding high-resolution audio files.
Power Cleanliness
Separating power and data streams prevents noisy computer power from polluting audio.
Build Quality
Compact, robust chassis design feels premium and built for long-term reliability.
Key Specs
Inputs
USB-C, USB-B 3.0
External Power Input
USB-C 5V
Grounding Port
Yes
Outputs
USB-A 3.0 (Power & Data), USB-A 3.0 (Power Only)
Data Speed
10Gbps
Dimensions
42.8 x 23.2 x 96mm
Net Weight
108g
Connector Type
USB
Features
- Galvanically isolates USB data stream
- Removes ground loops for cleaner audio
- Active Noise Cancellation3 technology
- Separates USB data and power streams
- Bypasses noisy USB power
- High-speed USB 3.0 data transfer
- Provides clean DAC earth connection
- Supports high-speed data transfer up to 10 Gbps
- Includes a 4mm grounding port for compatibility with grounding accessories
What customers say
Audiophiles widely regard the iFi SilentPower USB iPurifier Pro as essential for optimizing digital audio. The core theme is sonic clarity achieved through superior noise elimination. Users consistently report that its advanced galvanic isolation and Active Noise Cancellation create a significantly quieter background. This allows subtle musical details and improved soundstage depth to become clearly audible. For those with high-end audio systems, this device is seen as the final, crucial step in unlocking full component potential. While the build quality is superb, the premium price causes some hesitation for those with modest setups, though the target demographic generally agrees the performance justifies the investment.
Know before you buy
It cleans up your digital signal by galvanically isolating the USB data stream and using Active Noise Cancellation3 technology to strip away electromagnetic and radio frequency interference. By separating the data and power streams, it prevents electrical noise from your computer from reaching your DAC, resulting in a lower noise floor and clearer sound.
While the device can be USB-powered, it features a dedicated USB-C input for external power. Using a clean, high-quality external power supply is recommended if you want to bypass noisy power coming directly from your computer's USB port.
The grounding port allows you to connect the device to an external grounding accessory, such as the iFi Groundhog+. This provides a direct path to ground for your DAC, which is particularly effective at eliminating hums or buzzes caused by ground loops in your system.
No, the USB iPurifier Pro is fully compatible with USB 3.0 standards and supports high-speed data transfer rates up to 10 Gbps. It is designed to maintain signal integrity without bottlenecking your connection.
Yes, the iPurifier Pro is compatible with most USB DACs. It features both USB-C and USB-B 3.0 inputs, along with two USB-A 3.0 outputs—one for combined power and data, and one for power only—making it versatile enough for a wide range of audio setups.
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