The SilentPower iSilencer Max is a USB-C noise filter that reduces USB-borne interference for cleaner, more detailed computer audio. With Active Noise Cancellation III (ANC3), it cancels incoming EMI/RFI at the source to improve clarity, transparency, and bass performance. Jitter Elimination and REBalance Technology® help stabilize timing and preserve signal integrity so your DAC receives accurate data. Supporting USB 3.0, USB-C, and up to 100W (20V/5A) Power Delivery, it’s a compact, plug-and-play upgrade for quieter, better-sounding USB setups.
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iFi SilentPower iSilencer Max

The SilentPower iSilencer Max is a high-performance USB-C noise filter designed to restore clarity to computer-based audio by tackling electrical noise inside many USB ports. Using Active Noise Cancellation III (ANC3), it cancels incoming EMI/RFI at the source to deliver a cleaner, smoother presentation with improved transparency and bass definition. Jitter Elimination improves timing at the conversion stage, while REBalance Technology® helps maintain signal integrity so your DAC receives accurate data—reducing harshness and minimizing clicks and pops associated with USB noise and DC offset distortion. Plug-and-play and compact, it supports USB 3.0 (with USB 2.0 compatibility) and up to 100W (20V/5A) USB-C Power Delivery pass-through, all in a durable aluminium alloy housing for enhanced cooling.

What It's Good At:

• Cancelling USB-borne EMI/RFI noise for a cleaner, quieter background
• Improving clarity, transparency, and bass definition with ANC3 technology
• Reducing timing errors with Jitter Elimination for better detail and dynamics
• Maintaining data integrity to your DAC with REBalance Technology®
• Supporting up to 100W (20V/5A) USB-C Power Delivery for maximum compatibility
• Expanding noise reduction by using one inline and a second in an unused USB port

iFi SilentPower iSilencer Max Full Specifications:

• Type: USB-C Noise Filter with Active Noise Cancellation III (ANC3)
• Input/Output: USB-C
• Compatibility: USB 3.0 (backwards compatible with USB 2.0)
• Max Power Support / USB-C PD Pass-through: Up to 100W (20V/5A)
• Key Technologies: Active Noise Cancellation III (ANC3); Jitter Elimination Technology; REBalance Technology®; DC offset/distortion reduction (helps prevent clicks and pops)
• Housing: Aluminium alloy (enhanced cooling and durability)
• Indicator: Operational LED (connection status)
• Dimensions: 51.3 × 20 × 12 mm (2.0 × 0.8 × 0.5 in)
• Net Weight: 21 g (0.74 oz)
• What’s in the Box: 1 × iSilencer Max; 1 × Instruction Card
• Limited Warranty: 12 months
• Notes: Product colour may vary due to lighting; refer to the actual product for accuracy

iFi SilentPower iSilencer Max Q&A:

What does the iSilencer Max actually do?

It filters and cancels USB-related electrical noise (EMI/RFI) that can leak into audio gear, helping your music sound clearer, smoother, and more natural.

Where should I plug in the iSilencer Max for best results?

For USB audio, place it between your computer/laptop and the connected USB device (such as a USB DAC). You can also use one in an unused USB port to help reduce noise generated inside the computer.

Will it reduce pops, clicks, or harshness in my system?

It’s designed to reduce distortion from USB noise and DC offset effects that can contribute to audible clicks/pops, while also improving overall signal cleanliness.

Does it work with USB 2.0 and USB 3.0 devices?

Yes. It supports USB 3.0 and remains compatible with USB 2.0 setups.

Can I use it with fast charging or USB-C Power Delivery devices?

Yes. It supports up to 100W (20V/5A), improving compatibility with USB-C Power Delivery standards.

Can I use two iSilencer Max units at once?

Yes. Using two (each with built-in ANC circuitry) can further reduce noise—one inline and one in an unused USB port is a common approach.

Is there any software setup required?

No. It’s plug-and-play—just connect it and it begins working immediately.

Does the iSilencer Max get warm during use?

It may become warm in normal operation. This is expected—ensure reasonable ventilation and avoid extreme heat, cold, or humidity.