The design behind

ULTRA-LITZ

Field Cables

A completely new approach in cable design

It has been taught for decades by educational establishments that signals flow in cables. The perception of how a cable works, supported by top academic physicists in the United States, has driven us to develop a completely new modality for HiFi cables. 

This controversial video by Veritasium, ‘The Big Misconception About Electricity explains the vital importance of the field concept. We hope this video will help you to understand why we have taken this approach. 

Our three current cables are designed to maximise this new thinking and to access, hitherto unrevealed parts of your recordings.  

1. Single Ended Cables

Overview

This type of cable is the workhorse around the world in systems at all levels. However, getting a signal completely intact from one box to another in a system is a serious matter as many factors conspire to make the journey hazardous for what is a fragile and easily damaged signal.

In order to make significant improvements we had to address just about every component and its fundamental design.

History

  • The dominating mass in our interconnect is the felt as this controls by damping the micro vibrations caused by the signal within the cable and indeed the environment in which it sits. 
  • Conventionally this was usually done using plastic so the blurring effect of the signal would be significant.
  • The plugs in most interconnects are made predominantly of metal. The mass of metal in a plug can create eddy currents  (for a detailed explanation see our ‘eddy currently in our opening cable page under the technical section)
  • The two 750 strand bunches of cable carrying the signal are crimped into the  5mm neck of copper blade connectors and held tightly to the plug by a combination of springs and an interference fit. This ensures a permanent connection with years of reliability.
  • The technology of the plug reduces the mass of its metal structure to prevent the creation of eddy currents
  • We have found that solid silver conductors are superior sonically to copper and indeed, gold and silver plating. Solid silver gets out of the way of the signal allowing more of the recording to be reproduced authentically.

2. Balanced Line Cables

Used by audio connoisseurs, studios and audio professionals throughout the world.

The benefits of our balanced cables are very similar to our single-ended cables with one important difference. Most balanced line cables comprise two cables + and – surrounded by an earthed screen which is constructed from a cylindrical fine mesh of copper. This fine mesh ‘Protects’ the signal from the ingress of distortion carried by induction via frequencies carried in radio waves similar in nature to how a domestic Wi-Fi network works.

This has been the Modus Operandi of these cables for over sixty years. We have discovered and we are not alone in holding this view, that the copper screen, rather than protecting the signal, actually inhibits the formation of a field around the cable. Furthermore, we have demonstrated that if the screen is replaced with a Litz earthing cable then the sound stage is projected further with more detail hinting that some of the signal is not carried in the cable but in the three-dimensional field around it.

The diagrams below show a simple circuit driving a lamp the alternate fields changing from the first graphic to the second 60 times per second and the resulting fields showing rotation and polarity.

All look relatively calm and logical however inject the music of the Rolling Stones into the diagram replace the lamp with a power amplifier or pair of speakers and imagine the scene. This puts cable supports and risers into a different light and we are currently conducting R&D into this very subject.

The  XLR plugs we fit to our balanced cable are made by Atlas in Scotland as these are one of the only companies that offer a crimpable solution.

3. Loud Speaker Cables

Cables that do not get in the way of the hard-won detail and ambiance

Loudspeaker cables do not connect directly to speaker drive units, but in most cases, they connect to a passive speaker crossover network. This network divides the signal into many parts by frequency and feeds the result to the disparate drive units at the front of the speaker. All fine in theory; however, this filtering comes at a price, which is paid in the form of dipping impedances (AC Resistance), which can go lower than 2 Ohms and can make, particularly tube amplifiers, very hot under the collar. This phenomenon puts a large current demand on the power amplifier, which, out of necessity, requires a thick cable to deliver it safely. To dispel any nervousness, this only happens at certain frequencies; for the rest of the time, calmness returns.

When developing our speaker cable, we, of course, had to consider the above scenario and build into our solution sufficient cross-sectional area of cable to more than cope with this. We also learned lessons from our smaller cables and gained great advantages by following in their footsteps in terms of avoiding plastic as an insulator and making the dominating mass two layers of felt to deal with the insulation and, as importantly, control of vibration.

Comprising 8000 strands at 30 microns in diameter per conductor, our cables transport the signal they carry very gently and simply do not get in the way of the hard-won detail and ambience of the original recording. As in our other cables, we do not use solder and have designed our handmade spade connectors crafted from solid silver and hallmarked in the UK by the Birmingham Assay Office (Founded in 1773). These are crimped to the naked copper strands using a ten-ton hydraulic crimper with up to a ten-ton pressure. This ensures the removal of any air from the joint. This makes a perfect metal-to-metal junction inside the joint, which will not oxidize over time and carries the signal cleanly from your amplifier to your loudspeakers.

We are frequently asked about our silver tarnishing. The rate of tarnish will depend on atmospheric cleanliness. We supply a safe and eco-friendly silver cloth, which we recommend that you use on the terminals once a year. Providing terminals are tightened well at both ends of the cable, tarnishing should not be a problem.

 

‘I have been listening to interconnects for years and thought I had the best but this has beaten everything I have .’