Silent Power
Website:https://www.silentpower.tech/
Est. year: 2019
SilentPower is a British sub-brand of iFi audio that makes noise-reduction products for power, network, USB and HDMI connections. Its range runs from small plug-in filters to rack-sized optically isolated switches, aimed at home audio, recording studios, custom AV installation, hospitality and medical settings. The company draws on more than 25 years of research into galvanic isolation, optical isolation, active noise cancellation and signal purification.
Range & what it's known for
Network products form the core of the hi-fi offer. The LAN iSilencer and LAN iSilencer+ are inline Ethernet filters, the LAN iPurifier Pro adds optical isolation, and the OMNI LAN is a 13-port switch launched in April 2025. It sends data through an internal optical fibre, then regenerates it with active circuitry, and offers four Ultra-Pure ports with three isolation stages plus nine standard ports with one. A femto-precision clock with 10 MHz input and output lets it act as a master clock, and a colour display and the iFi Nexis app show live port speeds. Power products include the Nova, SupaNova, Quasar and SupaQuasar, the PowerStation, iPower supplies and the AC iPurifier, alongside USB and HDMI filters such as the OMNI USB, Pulsar USB and HDMI iSilencer.
Who owns it and where it's made
SilentPower is run as a dedicated sub-brand within iFi audio and sells through its own web shop as well as iFi channels. Development comes from the same British engineering team responsible for iFi audio products, and several SilentPower items such as the iPurifier3 and iPower2 share names with long-running iFi accessories.
The lineup in this catalog
Other devices, represented by the OMNI LAN network switch, listed by the maker at GBP 799.
Who it's for
The brand is a fit for streaming owners who prefer to tackle noise at the network or mains connection rather than replace core components. Small inline filters such as the LAN iSilencer at GBP 89 offer a low-cost first step, while the OMNI LAN and OMNI USB serve systems that need many isolated ports or a shared clock reference. Installers can also use the same products in multi-room and commercial AV projects.