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  • OutstandingSound Quality

Innovation through Research

About ETI Research

Engineered for Performance

No other company strives for uncompromised audio quality with the same determination and understanding as ETI. We thrive on a strong company ethos that values innovation, high performance and quality manufacture.

ETI-Research  products emerge consistently from competitor and class comparisons with a reputation for the best music reproduction. Creation and development of each product takes in years of science and engineering. From the traditional to the eccentric, no concept or idea escapes our design and evaluation processes.

Every detail in a system makes a difference. Passionately believing this and knowing that our customers enjoy the benefits of high performance audio motivates us to maintain our standards and continue pushing beyond the boundaries.

In 2001 the premiere product, the BulletPlug®, was introduced to rave reviews around the world. Hi-Fi Plus magazine from the UK reported: “The benefits are huge, HUGE! They transform the performance of affordable cables, and I can’t wait to hear them on serious leads.” In the same year, a range of cables was introduced under the eXpress label. They were the first to incorporate the famous ETI ratio, in which the return conductor has a carefully calculated greater cross-sectional area and mass than the signal.

Silver Link Bullet RCA Connector

Our No Compromise Design Philosophy

In every product design we strive for innovation that attains better audio performance.
The basic areas of connector design that we evaluate are:


Move an electron from Point A to Point B without varying it. Keep the electron intact through its entire transition from one component to the next. This is the simple design goal of ETI’s high performance audio products. Our most famous contribution to high performance audio design is the purposeful and calculated difference between the return and the signal carrying conductors with benefits to the signal flow – this is the essence of the ETI Ratio™. Expert knowledge and resources within ETI, and collaboration with respected industry leaders, guarantees the performance and quality of ETI products.

Our research and development process is a strong balance between engineering and hours of testing and listening. Acknowledging EMF, EMI and RFI can only be controlled, not nullified is the first step to uninhibited high end audio. Most cable designers stumble here and in doing so narrow their products’ frequency bandwidths to the detriment of the overall sound. Our cable designs draw on our experience with connectors and as such, ETI reference cables can be trusted to deliver the true character of your system. The ETI definition of success? A signal transmitting through connectors and cables.

Metal Conductivity

The superiority of Silver over other precious metals for audio signal transfer.


ETI Products

ETI and the complete range of products remain at the forefront of high performance audio and are now available in more than 40 countries worldwide.

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See our List of Worldwide Distributors

The Latest ETI News


Our timeline of news items
  1. We are very please that USAHIFI is now selling our connectors in North America. While Carl and the crew are very well regarded in Canada ,they also have a large client base in the United States. They can be contacted TOLL FREE: 1-877-236-4434 Email Sales@usahifi.com and website www.usahifi.com

  2. ETI-Research has moved again!Due to the growth and expansion we out grew our last location and it was time to upgrade.While nothing else has changed with ETI-Research the need for a larger and upgraded space made for the change at a quicker pace than we had anticipated. The new address […]

  3.       We are very pleased to announce the appointment of HiFi-Republic as the distributor of ETI-Research products for Hong Kong and China. Many will be familiar with the other name they are known by which is Lowther China. Creevy Yu has years of experience  and is very respected […]

  4.   THLAudio has become the distributor of ETI-Research products for Taiwan.We are very please to be working in association with them. After spending time with the staff at the Taiwan Audio Show I came away even more impressed with the depth of knowledge the company has in all aspects not […]

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