18Gbps 4K over extended lengths up to 4m with extremely low jitter rates.

A high-speed digital cable building upon the success of our 2nd-generation Atlas Element 4k HDMI.

The new Element HDMI 18G has been redesigned from the bottom up to deliver industry-leading digital bandwidth. The design goal was to allow the full, unimpeded 18gbps signal capability of the HDMI 2.0a specification, but over extended lengths, with ease. The new Element offers 18Gbps over lengths up to 4m, with extremely low jitter rates.

Sound quality is just as important as video performance in creating an immersive theater experience.The Element HDMI 18G with Ethernet was specifically designed by Atlas' digital engineers for advanced home cinema systems, to deliver optimal bandwidth and maximum fidelity.

Reducing Jitter

Why is jitter so difficult to deal with in a digital system? And why are its effects so disastrous on performance?

Jitter manifests itself in display and processor electronics as a concept called “work done.” That is, the easier the display device can recover the data from the interface, the lower the work done — and therefore the potential for the higher fidelity audio and video performance is achievable. If the display device is continually checking and correcting errors, then this uncertainty is transferred onto the power supplies, the clocking circuits and the digital to analogue converters. This manifests itself directly in increased power dissipation, higher heat output and, ultimately, poorer sound quality.

Although it's sometimes called "noise," jitter is often not directly audible as hiss or interference — but by directly creating drag on a DAC's clock accuracy and error correction circuitry, it reduces tonal accuracy and dynamic range. You may not hear it while it's present, but you'll easily hear the difference when it's removed.

To ensure that the maximum available bandwidth is maintained throughought a cable's length, numerous factors need to be controlled: attenuation; noise sources; skin effect; dielectric loss; intra- and inter-pair skews; shielding; et al. Together, all these elements add uncertainty into the digital domain of "ones and zeroes." This “uncertainty” is the #1 performance killer in digital systems, and is also known as JITTER.

The design of the Element 18G HDMI cable utilizes high-purity Oxygen-Free Copper (OFC) conductors insulated by a super rigid and geometrically stable polyethylene dielectric to deliver fast, accurate signals between source and destination components. An advanced conductor topology and precision twisted construction enables us to achieve consistent data transmission and maintain constant impedance.

Combining these elements with sophisticated triple-layer shielding, the Element 18G HDMI cable minimizes the timing issues which potentially degrade performance by increasing the error correction required by any digital receiver.

General purpose HDMI uses twisted pairs, this necessitates matched twist ratios for each TMDS twisted pair (which is not the case today), increased capacitance between pairs can increase crosstalk dramatically. HDMI cables combat this effect by using shielding around every twisted pair, and even more shielding around the entire cable to help reject noise from being injected into the cable. The tight tolerances, additional shielding, result in a more expensive cable than that used for general data transfer.

Each critical TDMS twisted data pair on the Element 18G HDMI is produced from 28awg OFC conductors encased within super rigid and geometrically stable Polyethylene dielectric. Each critical pair being then individually shielded within a 100% Mylar copper screen before a secondary shielding layer is further enhanced via a copper outer screen. The combination of precision twisting and critical shielding cancels out the worst effect of inductive and capacitive coupling within the cable. This balanced shielding approach also delivers exceptional EMC performance.

Finally, a precision die-cast metal connector offers improved retention force. This ensures a precise, secure connection (loose-fitting connectors can be a cause of signal loss).

Geometry: 19 conductor multicore

Conductor: OFC

Dielectric: Data PEF, Power HDPE

Screen: Braid & Mylar™, 100%

Outside Diameter: 7mm

Data Bandwidth: 18GB/s

Processing & Shipping Times

Atlas is distributed in the USA and Canada by VANA Ltd. We keep a small subset of standard lengths in stock in our New York warehouse. Online orders are processed within 2 business days. Orders than can be fully or partly fulfilled from our stock will usually ship within 3 business days. You can also inquire about inventory with your local Atlas Cables dealer. 

Custom orders and lengths that are not currently in stock will be made to order in Scotland and drop-shipped to your door. These typically ship within a week and arrive to their North American destination within 2 weeks.

Note: Fulfillment times for custom may currently be longer due to the COVID pandemic. Please contact us for an estimate if your order is time-sensitive.