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Technology
Interconnects
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The crucial problem in manufacturing the cables is - how to obtain electric conductors of the best characteristic, necessary for the transmission of musical broadcast. Velum co-operates with scientific laboratories where the innovative solutions are formed in order to gain the best materials. The basic criteria by choosing the conductors are: low noises and high resolution. Velum uses the unique sorts of copper and silver and their combinations; insulating material is, above all, Teflon. Every type of cable is tested for a long time and hundreds of checking before the final version can be manufactured. However, the most important thing in this process is an approach to the whole problem - the aim of cables is transmission of MUSIC converted into electrical impulses, not only the transmission of electrical impulses. And this is Velum company credo. All the constructions are Velum's own solutions, the cables are hand-assembled; for every kind and length they've got a specific internal architecture. On assembling, the cables are put on control procedures. Then the features being checked are corrected until they conform the master/standard. There are, depending on the kind, from few to dozens control points. The final stage is the audio monitoring; during this test various aspects of sound are analyzed. The comparison with standard allows to find deviations, which are subsequently eliminated. Interconnects and speaker cables are made in pairs, in which the localization of sound in space is identical. It is very important because only then the right and left channel sounds join together and create a precise illusion of effect in the sound space. And only after this whole procedure the cable is closed and packed. It is not out of place to explain several questions that are important for those who decide to buy good cables. Why do the cables play such a major role in audio system? Why a length of ordinary wire is not enough for audio connections? Why their prices are so high? Why such seemingly trivial thing as assembling the cable is actually so difficult and complicated task? The acoustic band consists of frequencies with very wide range - from 15 Hz to 20 KHz. The sound-reproducing system should in practice transmit the frequencies up to 200 KHz, on account of concurrent harmonic frequencies which influence the sounds in acoustic band. The flow of frequencies from low and high range of the band in electric conductor is ruled by quite different rules. This very simple fact results with many complications. And in music innumerable frequencies exist parallel. The presence of each signal has its negative influence for the rest. Then there are the parasitic phenomena distorting the signals - such as reflected waves, electric inertia, noise, perforation of signal, and many others; last but not least - phase shifts. The higher fidelity of reproduction we want to gain, the more subtle distorting elements occur; one must cope with them, often not even knowing their cause. The situation becomes more difficult when we take into consideration the fact that removing of interferences mustn't in any way disturb the original signal and should not cause other distortions. Cable designers must face such problems. Developing of each model of cable includes hundreds of long-lasting tests before the final version can be put into production. Generally speaking, the main problem is how not to loose anything from signal and, at the same time, how to preserve the substance of music. CD records, if made properly, contain an enormous musical information; we realize it with great surprise when we deal with outstandingly precise audio system. We already know that we can't reproduce everything which is comprised on CD - and what happens when the XXI century recording systems will come into use? The new formats of sound recording, containing more information won't give us anything new unless they are combined with sound-reproducing systems adequate to the quality of recording. The quality of recording itself is not enough to create the quality of reproduction. And the quality of system depends on cables as well. Thanks to good wiring, such system can just take us to an auditorium and enable experiencing the music - sometimes even more intensely than in nature, if the recording was made from perfect spot. Thus, any system, unless connected by high quality cables, cannot show its real possibilities. Velum company, realizing what the future can bring, works continually on improving its products so that they could face the challenges of new, better recording formats. The work on perfect cable may be interminable. We have better and better sound sources, amplifiers, speakers - we can hear more and more! |
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