
Eos 4.0em
Advanced OFC Power Cable.

It’s long been known that the quality of mains power can notably affect the performance of hi-fi & home cinema systems. A clean, quality power supply requires cables resistant to external interference and noise on the mains itself.
These factors and the degree to which they can degrade audio performance have perhaps been underestimated previously, only recently coming to play a critical role in many manufacturers’ product design strategies. At Atlas, such issues have been a core consideration for several years, culminating in the introduction of our latest Eos ‘em’ power cables and distribution blocks, the third generation of our advanced ‘noise-killing’ products.
The Eos 4.0em Power Cable uses high purity 4mm² OFC conductors in combination with a carbon-loaded screen with our dd (Dual Drain) termination configuration. Particularly well-suited to components with high power requirements, the Eos 4.0em is designed to deliver optimum performance from the most sophisticated audio systems and is an ideal choice to use between wall socket and our Eos Modular 4.0em power block.
Eos power cables are sophisticated products explicitly designed to allow your equipment to perform optimally. Built around high-purity OFC (Oxygen Free Copper), with low series resistance, high-efficiency dielectrics and sophisticated screening, Eos cables effectively filter out harmful electromagnetic disturbance effects, radio frequency interference and mains-borne noise contamination, dumping these rapidly to earth.
By comparison, a typical domestic power lead lacks the quality of component parts, screening layers, Dual Drain system and anti-vibration treatment we employ in Eos.
For more detailed information on Eos power products, see our Eos overview or refer to the Power white paper in our Technical Library.
Key Features. Essential characteristics of this product.


Product Specifications.
Construction | Multi-core |
Conductor | 4mm² Tin-plated OFC |
Dielectric | Stabilised PVC |
Screen | Carbon-loaded hybrid, Dual Drain |
Outside Diameter | 13.5 mm |
Colour/Finish | Black braid |
Current capacity | 20A |
Product Options. Please specify when ordering.
IEC Connector
At the equipment end of the power cable, IEC connector options are C13 (10A), C15 (10A) or C19 (I6A).
The Eos Power Management System
Designed to let you hear what your equipment’s really capable of. Eos power cables and Eos Modular distribution blocks are available in UK 13A, Schuko & Nema variants. Some Eos products also offer the option of Australian/New Zealand types.
Your local Atlas dealer/distributor will supply Eos products with the appropriate plugs for your market.
Reviews. What the specialist media say… (Eos 4dd refers to the previous version of this product).

Using the Eos 4dd to connect the power supply of my preamp and phono stage to the mains, I find everything is whisper-quiet and there is certainly no evidence of invasive mains-borne noise getting into my sensitive phono stage.

A quality mains cable that will help bring more depth and definition from your system. The results easily justify the price.