Distributors & Consultants of Fine Audio, Video & Home Automation
A Reference in Power Isolation


Reference PowerIsolation

Achieve the Sound Your Components Were Designed to Deliver 

The combined technological innovations that produced the benchmark Transparent OPUS PowerIsolator (OPI) are now available in a more affordable form at the reference level. The REFERENCE PowerIsolator (RPI) is the key to unlocking the full performance capability of high-end audio and video components. 
Unrestricted Power 
Transparent’s new Reference PowerIsolator, RPI, embraces the same design objective as OPI in a more affordable form.  Sporting 8 outlets in 4 individually isolated banks of 2 outlets each, Reference PowerIsolator silences broadband AC line noise while delivering unrestricted, in-phase power signals.  With its unrestricted, isolated circuits, RPI can deliver clean, in-phase power to any combination of audio and video components, including high current amplifiers.
Resonance Control
RPI resists vibrations and electromagnetic field restrictions through a new curved enclosure. Massive extruded aluminium sidebars topped with a rigid, non-metallic thermoformed polymer shell create the basis for a rock-solid enclosure.  Internal cross braces and proprietary epoxy loading add mass and damp resonances and vibrations.
Professional Grade Protection
The RPI also provides integrated Network Source Protection (compatible with Gigabit Ethernet and PoE), hydraulic-magnetic circuit protection, and avalanche diode failsafe surge protection. 


  • Effective AC noise filtering with power factor correction for superior tonal fidelity and more realizable, on-phase power
  • Integrated Network Source Protection, hydraulic-magnetic circuit protection, avalanche diode failsafe surge protection
  • Hybrid aluminium and thermoformed polymer enclosure is inherently resistant to vibrations and electromagnetic field restrictions
  • Internal cross braces and proprietary epoxy loading damps resonance and vibration
  • Available in USA, UK, EU and other power applications

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