The Asimi Ultra is the latest statement cable from Atlas fitted with XLR plugs at both ends.
The Asimi Ultra uses solid silver conductors, manufactured using the highest-quality technique for drawing pure silver. “Ohno Continuous Cast” or OCC, used in the manufacture of high quality Atlas copper cables, minimises the impurity boundaries in the material, in this case pure silver, by ensuring that there is less than one grain or signal-deleting crystal boundary in up to 125m of conductor! OCC solid silver allows the signal to travel through a continuous conductor instead of traversing repeated grain boundaries – in other words, the signal has a faster, cleaner and more direct path to follow.
Through previous research, Atlas was already aware that the best realisable dielectric is air and that in an ideal world, by suspending the conductor in free air would be the best method to transfer maximum fidelity. However, this is not practical so a dielectric is necessary to ‘protect’ the conductor. To achieve the necessary amount of protection without increasing inefficiency, Atlas has developed a new technique, which uses a microporous PTFE (Teflon) tape, which is wound around the OCC solid silver conductors, then covered again and stabilised using a protective FPE (Flexible PolyEthylene) dielectric. This process allows the required geometry of the conductor to be maintained and offers greater manufacturing consistency.
The ‘Ultra’ Connector Plug
Designed in-house at Atlas, the modular design of the new Ultra plug is a clear example of the continuous development program into materials and technology embedded into the Atlas ethos. This new plug employs a novel approach to the problems of mass reduction, residual conductivity (eddy currents) and dielectric discontinuities, all of which can affect the mechanical and electrical properties of a cable. The all new Atlas Ultra has a 57% reduction in mass over its predecessor, employs an internal non-conductive sleeve matched to the dielectric properties of the cable (Teflon) as well as maintaining the renowned Atlas plug attributes of solder free construction, self-cleaning insertion and material consistency. As a result, the Atlas Asimi Ultra cable maintains its electrical integrity from socket to socket.
RFI (Radio Frequency Interference) is a major factor in cable design, especially now with the amount of ambient electrical wireless signals present in the majority of homes. To combat RFI, traditionally a metallic barrier (or braid) is encased around the insulated conductors and terminated at one or both ends. However, through research, Atlas discovered that to make the best termination possible, the braid needed to be partially removed and twisted, therefore reducing the integrity of the screen, introducing mechanical screen distortion thereby delivering an inconsistent RF performance. For the new Asimi Ultra, Atlas has developed a new system that uses two symmetrical drain wires (each attached to 180 degree segments of the plug) inserted between a 100% copper Mylar foil and SPC screen. This unique system connects the screen effectively to the cable return plug interface and provides total 360° screening, whilst not distorting the integrity of the screen in any way.