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The new Mavros cable has been designed to be technically and sonically superior to ANY other loudspeaker cable currently available anywhere and at any price!
Sunday 2 December 2007
By John Carrick
Mavros speaker cable (NEW)
Atlas moves one step closer to the Perfect Loudspeaker Cable
Specialist cable manufacturer, Atlas Cables, has announced the introduction of what is probably the highest performance loudspeaker cable available; a cable researched, designed and developed in Scotland. The new Mavros cable has been designed to be technically and sonically superior to ANY other loudspeaker cable currently available anywhere and at any price!
The Mavros uses a new microporous PTFE dielectric together with OCC copper to avoid signal deletions from crystal boundaries. These copper conductors are manufactured using the highest-quality technique for drawing copper; "Ohno Continuous Casting" or OCC which has one grain in about 700 feet of conductor, so the audio signal travels through a continuous conductor instead of traversing grain boundaries. The copper itself is of the highest purity; 6N or 99.9999% pure.
The hitherto highest performance insulator, solid PTFE, has dielectric constant of around 2.1 whilst the new Microporous PTFE foam has a dielectric constant around 1.5. That provides for a 30% greater signal velocity and better integrity, particularly in the area of high frequency delivery.
The construction of the Atlas Mavros Bi-Wire Loudspeaker Cable consists of a pair of low-frequency conductors each made up from 385 strands plus a pair of single high-frequency conductors of 1.5mm diameter. All four conductors are individually insulated by a layer of Microporous PTFE and surrounded by a PVC outer jacket which is covered by a hard wearing layer of black woven cotton. The Mavros Loudspeaker cable can be supplied factory terminated by the exclusive Atlas Beryllium copper hard gold plated 4 mm Z plugs or OCC spade terminals to ensure the use of a pure copper material throughout the signal path.
In listening tests the Mavros cable has excelled, providing a better sense of pace and rhythm, together with a revelation of the true ambience, depth and height contained in the recording. And this is achieved without any disturbing aberrations in the frequency response. It does not push forward any part of the audio spectrum, it does not cause fatigue, it reveals everything the recording engineer intended and it helps the hi-fi system to sound altogether more realistic with a spatial sound that replicates a real live listening experience.
This exciting new loudspeaker cable is available now and is typically priced at £1390 for a 3 metre long pair of cables terminated with Z plugs.
To find out more about Atlas Cables call 01563 572666, or visit: www.atlascables.com
Technical Specifications:
Conductors:
Two with 385 strands of OCC copper wire
Two with 1 strand of 1.5mm diameter OCC copper wire
Copper Purity: 6N or 99.9999% pure
Conductor resistance: 0.0035 ohms per metre (25ºC)
Conductor Capacitance: 111.14 pF per metre (conductor to conductor)
Conductor Inductance: 0.341 μH per metre (conductor to conductor)
Insulation: Microporous PTFE
Outer Jacket: PVC with black cotton weave covering
Overall Diameter: 10.2mm
Notes for Editors:
Microporous PTFE has been used recently in some very expensive cables designed for use with radio and television broadcast systems but Atlas is the first company to bring this sophisticated material into use for audio cables.
Microporous PTFE is a unique, low density dielectric material that offers significant performance improvements over solid PTFE dielectric designs. Microporous PTFE contains a higher percentage of air than solid PTFE; achieved by introducing small
voids (less then one-half micron diameter) of air within the material. The result is a lower dielectric constant (typically dropping from 2.1 to 1.3), corresponding to higher velocity of propagation values, typically ranging from 72% to 85%.
Microporous PTFE has less phase stability vs. temperature variation because this is dependent upon the coefficient of thermal expansion of both the cable dielectric and conductors. And since Microporous PTFE has a lower coefficient of thermal expansion than Solid PTFE, the use of a microporous dielectric results in less dielectric expansion and so an improved phase vs. temperature response.
For the same outer diameter, cables using Microporous PTFE exhibit a lower loss of signal than those using solid PTFE. This is first, because the low dissipation factor of the dielectric itself reduces attenuation, especially at higher frequencies, and second, the low dielectric constant of a microporous dielectric allows the use of a larger diameter conductor.
The thermal expansion of solid PTFE can have detrimental mechanical effects on cable because as the PTFE expands with heat, it can decrease the air gap between the cable dielectric and connector contact, thus degrading termination impedance. But since the microporous dielectric expands minimally with heat, these effects are insignificant.
In some respects the differences outlined above might be considered to be small but the accumulated effects of these small changes can cause a degradation of the audio signal. Removing that degradation peels away another layer of non-harmonic related non-linearities to reveal more of the music recording.
Press contact:
Angie Curtis and Ben Curtis
Diva Corporation Limited, Westward House,
Bury Road, Ramsey, Cambs PE26 1NA
Telephone: 01487 711244
Angie mobile: 07736 234803 Ben mobile: 07768 234394
Email: mail@divacorp.co.uk
Web-site: www.divacorp.co.uk
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Atlas, Atlas Cables, Mavros, speaker, loudspeaker, cable, bi-wire, biwire, microporous, microporous PTFE dielectric, Beryllium copper,
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