Shunyata Gemini Model-4 Power Distributor and Chassis Grounding System

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    This makes the GEMINI Model-4 an ideal power distributor combination for headphone systems or high-performance audio-video systems with four or fewer components. The onboard Chassis Grounding System only adds to the profound noise reduction achieved through GEMINI's patented NIC chambers and multi-stage filtering capability.


    The GEMINI Model-4 is a unique product that is actually two devices in a single chassis. It includes both a high performance power conditioner and an advanced ground noise reduction hub. It features patented NIC™ noise isolation chamber technology that provides a common grounding point for all components and extends the GEMINI’s noise reduction capabilities to all system components. This significantly reduces AC noise and voltage differences between chassis components that may help to reduce potential ground loops.

    The GEMINI Model-4 is the perfect solution for simpler high-end systems, headphone systems and for network closets. Headphones are particularly sensitive to power line noise and ground plane noise. Network switches, routers, music servers and computers all respond positively to improved power distribution and ground plane noise reduction. A GEMINI in the network closet provides a very significant performance boost to any audio/video system.

    Although the GEMINI Model-4 has a small footprint, it is a high current device capable of powering 200+ watt amplifiers.


    DTCD™ Analysis is a technique that measures instantaneous current through low impedance electrical conductors and contacts.  Shunyata Research uses it to optimize the design, specification and construction of parts and materials to ensure maximum current delivery performance.  Each part, conductor, noise circuit and material allows for maximum throughput of instantaneous current.

    Listeners will experience earth-shaking low-frequency performance from even the highest-current amplifiers as well as dynamic contrasts unheard of outside of a live event.  More than any other design parameter, Shunyata Research’s skill in eliminating resistance and maximizing peak-current delivery is unmatched.


    The NIC™ (Noise Isolation Chamber) is a patented technology that reduces high frequency power line noise.

    NICs™ use a non-reactive ferroelectric substance that actually absorbs high frequency noise.  This reduces noise without any of the negatives associated with power filter coils, capacitors and transformers.


    Traditional power conditioners are designed to block incoming noise from outside the home, but do not address the noise that is generated by the electronic components themselves. In fact, most conditioners reflect noise back into other components connected to the power conditioner. CCI™ (Component-to-Component Isolation) is one of the most significant but often overlooked aspects to power system performance. The CCI™ filter consists of a proprietary multi-stage filter that reduces electrical noise and interference generated by a component’s power supply.


    The CGS (‌‌Chassis Grounding System) is an internal ground-buss that uses patented NIC™ technology to reduce ground plane noise. ‌‌CGS provides a common grounding point and extends the noise reduction capability of the power conditioner’s internal Noise Isolation Chambers to other electronic components. ‌‌CGS helps to minimize inter-component voltage differences between component chassis and may reduce the hum associated with ground loops while improving low-level resolution and clarity.

    The system includes four terminals, that allows up to eight audio components to be connected.


    Maximum Voltage:
    90-125 VAC r.m.s. unregulated (US)
    220-240 VAC r.m.s. unregulated (AS)
    220-240 VAC r.m.s. unregulated (EU)

    Input Current Ratings:
    Maximum Continuous Current: 20A (US)
    Maximum Continuous Current: 16A (AS)
    Maximum Continuous Current: 16A (EU)

    Output Current Ratings:
    Max Current/Outlet: 15A (US & AS)
    Max Current/Socket: 16A (EU)

    Maximum Transient Protection:
    40,000 A @ 8/50 μs

    Over-Current Protection:
    Hydraulic Electromagnetic Breaker

    Wiring System:
    Dual 12-gauge ArNi® VTX™ Buss System
    Ratings: 600 V 105° C

    Noise Suppression:
    Input to Output (100 kHz – 30 MHz): > 24 dB reduction
    Zone to Zone (100 kHz – 30 MHz): > 26 dB reduction

    Connectors & Outlets:
    Inlet: IEC C15
    US Outlets: 4 NEMA5-20R
    AS Outlets: 4 NEMA 5-20R

    Isolation Zones
    2 zones

    Vibration Control:
    Vibration dampening panels (internal)
    Shunyata Vibration Dampening Footers

    Aluminum and steel chassis
    Anodized, aluminum faceplate

    Width: 12.25 inches (31.12 cm)
    Depth: 5.88 inches (14.95 cm)
    Height: 4.77 inches (12.12 cm)
    Weight: 6.6 lbs. (2.0 kg)

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