iFi Audio SilentPower HDMI iSilencer Noise Filter with Surge Protection

iFi SilentPower HDMI iSilencer - Noise Filter with Surge Protection

The SilentPower HDMI iSilencer is a compact HDMI noise filter with surge protection designed to improve the clarity and stability of your audio and video signal. Powered by Active Noise Cancellation II (ANC2) and jitter elimination, it helps reduce interference and timing errors that can cause visual artifacts, weaker contrast, and less accurate color. Installation is simple—place it between your HDMI cable and your TV, projector, AV amplifier, or media device for a quick plug-and-play upgrade. It also includes Transient Voltage Suppression (TVS) surge protection to help shield connected equipment from spikes, static discharge, and other transient voltage events, while maintaining pure passthrough for HDMI 2.1 and earlier standards, including 8K/60Hz and 4K/120Hz Ultra HD HDR.

What It's Good At:

• Cleaning up HDMI signal noise to reduce visual artifacts and improve AV clarity
• Improving contrast and color accuracy by reducing jitter and timing errors
• Protecting expensive AV gear with built-in TVS surge protection against spikes and transients
• Upgrading home theater and gaming setups with support for 8K/60Hz and 4K/120Hz Ultra HD HDR
• Fast, no-fuss integration for custom installs, conference rooms, digital signage, and pro AV systems
• Reliable build quality with a military-grade PCB and audiophile-grade components

iFi SilentPower HDMI iSilencer Full Specifications:

• Product type: HDMI Noise Filter with Surge Protection
• Noise reduction technologies:
  • Active Noise Cancellation II (ANC2)
  • Jitter Elimination
• Surge protection: Transient Voltage Suppression (TVS)
• Signal handling: Pure passthrough (active filtration without altering standards support)
• HDMI compatibility: HDMI 2.1 and all previous HDMI versions (also listed as “Super-Speed HDMI 2.1” in the manual)
• Resolution supported: 8K/60Hz and 4K/120Hz Ultra HD HDR
• Input connector: HDMI Male
• Output connector: HDMI Female
• Connectors (manual): HDMI gold-plated connectors
• Indicator (manual): Operational LED (lights to indicate the connection/device is working)
• Voltage rating: 5V (Max 6.3V) / 1A (rating also shown as “5V or MAX.” in the manual)
• PCB: Military-grade printed circuit board with audiophile components
• Dimensions:
  • 51 x 24 x 10 mm (2.0 x 0.9 x 0.4 in)
  • Manual lists: 51.2 x 23.4 x 9.6 mm (2.0 x 0.9 x 0.4 in)
• Net weight:
  • 11 g (0.39 oz)
  • Manual lists: 12.3 g (0.43 oz)
• Limited warranty: 12 months (manual notes typical/as permitted by local reseller laws)
• What’s in the box:
  • 1 x HDMI iSilencer
  • 1 x Instruction Card
• Notes: Product image color may vary due to lighting; refer to product for accuracy

iFi SilentPower HDMI iSilencer Q&A:

What does the HDMI iSilencer do?

It reduces electronic noise and interference on HDMI connections using ANC2 and jitter elimination, helping improve video clarity, contrast, and color accuracy while also supporting high-bandwidth formats.

Will it work with HDMI 2.1 devices and older HDMI gear?

Yes. It supports HDMI 2.1 and all previous HDMI versions, making it compatible with both modern and legacy AV systems.

Does it support 8K and 4K high refresh rates for gaming?

Yes. It supports Ultra HD/HDR 8K/60Hz and 4K/120Hz, which is ideal for high-performance consoles and PCs when paired with appropriate HDMI cables.

How do I install the HDMI iSilencer?

Insert the HDMI iSilencer into the HDMI port on your TV/projector/AV amplifier (or device), then plug your HDMI cable into the iSilencer’s HDMI female end.

Can it help protect my equipment?

Yes. It includes TVS surge protection designed to suppress excess voltage and help protect connected AV components from voltage spikes and transient events.

Does it change the HDMI signal or reduce bandwidth?

It’s designed for pure passthrough, meaning it actively filters interference while maintaining compatibility with supported video standards.

What does the LED mean?

The operational LED lights up to indicate the connection is working and the device is functioning properly.

Is it normal for the device to feel warm during use?

Yes. The manual notes it may become warm during normal use; ensure good ventilation and avoid extreme heat, cold, or humidity.