AudioQuest Cablu AudioQuest Fiber Optics Cinnamon

AudioQuest Cablu AudioQuest Fiber Optics Cinnamon

294,00 RON
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AudioQuest Cablu AudioQuest Fiber Optics Cinnamon

294,00 RON
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Lower-Dispersion Higher-Purity Fiber Low-Jitter (Digital Timing Errors) Precision Polished Fiber Ends The audio frontier is all abuzz these days with the pleasurepossible though HDMI, USB, FireWire® and Ethernet connections. However, thesecurrent generation digital technologies are only part of the story, just as thechallenge of designing, manufacturing and choosing the best analoginterconnects and speaker cables is as important as ever. The S/P-DIF (Sony®Philips Digital InterFace), which arrived in 1983 along with the CD, is stillvery much a part of our world today. S/P-DIF is transmitted through DigitalCoax and Toslink fiber optics (EIA-J), making them still some of the mostimportant cables in electronic entertainment. While, thanks to HDMI, Toslink is not so often used toconnect a DVD player to an A/V receiver, Toslink connectors are common oncable-boxes, TV sets, subwoofers, all sorts of products. And now, the 3.5mmMini Optical connector, also somewhat incorrectly known as Mini-Toslink, iseverywhere … from the 3.5mm dual-purpose headphone jack on a Mac laptop, toinputs on some of the finest portables. For these many reasons, AudioQuest has refined and renewedour line of serious high performance OptiLink cables. All models and alllengths are now available Toslink to Toslink and Toslink to 3.5mm Mini Optical. When the question is how can a fiber-optic cable change thesound? … the answer is easier to explain than for almost any other type ofcable. If the light source were a coherent laser, firing into a vacuum, all thelight would stay straight, arriving at its destination at the same time. Evenif the LED light source in a Toslink system were coherent, the light entering afiber-optic cable is scattered and dispersed by imperfections and impurities inthe fiber. This can be measured as a loss of amplitude … but amplitude is notthe problem, a 50% true loss would have no effect on sound quality. The problem is that the dispersed light does get through thecable, but only after it has taken a longer path, like a pool ball bouncing offthe side-rails, causing it to arrive later. This delayed part of the signalprevents the computer charged with decoding this information from being able todecode properly, or even at all. The inability to decode shows first at higherfrequencies (not audio frequencies, this is a mono stream of digital audioinformation), so reduced bandwidth is a measurable signature of light beingdispersed by a fiber. The punch line: The less dispersion in the fiber, theless distortion in the final analog audio signal presented to our ears. There is another serious dispersal mechanism in the Toslinksystem. The fiber is a relatively huge 1.0mm in diameter, and the LED lightsource is also relatively large, spraying light into the fiber at manydifferent angles. Even if the fiber were absolutely perfect, the signal wouldbe spread across time because light rays entering at different angles takedifferent length paths and arrives with different amounts of delay. The almost complete solution to this problem is to usehundreds of much smaller fibers in a 1.0mm bundle. Because each fiber islimited as to what angle of input can enter the fiber, there is far lessvariety, and far less dispersion over time. This narrow-aperture effect issimilar to how a pin-hole camera can take a picture without a lens … by lettingin light at only a very limited range of angles, a picture can be taken, whereas removing the lens from a wider aperture would make photographyimpossible. Less light gets through a multi-fiber cable, but the light thatdoes get into the fibers comes out within in a much smaller time-envelope. So there is one problem, the dispersion of light across time… and two avenues towards a better result: less dispersion in the fiber (betterpolymers and ultimately quartz), and less dispersion by filtering the inputangle. How simple is that! Listen and enjoy. ]]>

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