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Shunyata Research Gemini Model-4 Power Distributor (120V)

Sale price$1,998.00

The Shunyata Research Gemini Model-4 Power Distributor stands as a pinnacle of excellence for audiophiles seeking to optimize their audio setup. Crafted with meticulous attention to detail and advanced engineering, this power distributor embodies the essence of high-performance audio equipment. It offers a comprehensive solution for managing and distributing power to various components of an audio system, ensuring clean and stable power delivery for optimal performance. Audiophiles will appreciate its ability to effectively isolate and filter out noise and interference, resulting in a clearer and more refined audio output.

One of the standout features of the Shunyata Research Gemini Model-4 is its innovative design, which incorporates advanced technologies to enhance power delivery. The use of premium quality materials and components ensures robustness and reliability, while the intelligent layout and construction minimize signal degradation and impedance issues. This translates to a more immersive and engaging listening experience, with improved dynamics, resolution, and detail retrieval. Whether used in a high-end stereo system or a home theater setup, the Shunyata Research Gemini Model-4 Power Distributor elevates the performance of audio components to new heights, making it an essential addition for discerning audiophiles who demand nothing but the best.

Gemini Model-4

the perfect solution for high-end headphone systems


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.

For larger systems with more then 4 components please refer to the Gemini Model-8.



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.

CGS - Chassis Grounding System

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.

We offer several models of CGC Ground Cables each made to your custom length and termination requirements.

Read the GEMINI Grounding Guide

‌‌ArNi® is a type of wire created by Shunyata Research designed to be the finest quality wire available for audio purposes. It begins with the highest purity of copper available – OFE C10100 or Ohno (single crystal). Then it is formed in virtual hollow tubes eliminating skin effects and eddy current distortions. In addition, the wire undergoes our proprietary KPIP™ process.

Electromagnetic Breaker

Over-current protection is a requirement for today’s high current audio power distributors. The vast majority of manufacturers use an inexpensive thermal fuse or breaker. Both are specifically designed to heat up as the current level rises. This causes voltage drops, increased contact impedance, thermal noise, excessive heat generation and current limiting effects. There is a better solution — the hydraulic electromagnetic breaker that utilizes low-impedance relays and a sensing coil that reads the current level without heating up or limiting current. They can operate right up the to the maximum current level without heating up or limiting instantaneous current. They are rarely used in competitive products since they cost 10-20 times that of a common fuse or thermal breaker.

Power distributors react very similarly to power amplifiers in their sensitivity to vibration. Using the Shunyata vibration analyzer, Caelin Gabriel developed the Shunyata ‌‌Isolation Footer, which possesses excellent measured vibration dampening characteristics. Shunyata Research also produces several SSF (stainless steel feet) that employ energy absorbing polymers. (Note: SSF feet are standard on some models and optionally available on others)

Cryogenic Processing

Shunyata Research operates its own onsite Cryogenics International computer-controlled cryogenic plant. Liquid nitrogen is used to reduce the temperature of the contents to -320 degrees Fahrenheit. The computer monitors and lowers the temperature by a single degree at a time to prevent thermal shock.

We use this process to improve the performance of connectors and various electrical components that are used in our power products and signal cabling.


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

Current Ratings:
Input current maximum: 15A (US)
Input current maximum: 16A (EU)
Peak instantaneous current @ 10ms: >1000A
Output current max: 15A

Transient Suppression:
40,000 A @ 8/50 μs

Over-Current Protection:
Hydraulic Electromagnetic Breaker

Wiring System:
12-gauge ArNi® conductors
OFE C10100 copper
Ratings: 600 VAC 105° C

Noise Suppression:
Input to Output (100 kHz – 30 MHz): > 40 dB reduction
Zone to Zone (100 kHz – 30 MHz): > 30dB reduction

Noise Reduction Technology:
NIC™ Noise Isolation Chambers (patented)
Trident Transient Protection Module
CCI™ v4 Noise Filters (3)
KPIP™ Process

Connectors & Outlets:
Input Connector: IEC-C15R
US Outlets: 4 NEMA5-15P
EU Outlets: 4 CEE 7/3

Vibration Control:
Vibration damping panels (internal)
Shunyata Isolation Footer

Powder coated steel chassis – 16 gauge
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. (2.99 kg)

Reviews & References