AudioQuest Pearl OptiLink .75m (2.46 ft.) Optical Audio Cable

Description

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Product Description:
OptiLink .75m Optical Cable
The audio frontier is all abuzz these days with the pleasure possible though HDMI, USB, FireWire® and Ethernet connections. However, these current generation digital technologies are only part of the story, just as the challenge of designing, manufacturing and choosing the best analog interconnects 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 still very much a part of our world today. S/P–DIF is transmitted through Digital Coax and Toslink fiber optics (EIA–J), making them still some of the most important cables in electronic entertainment.
When the question is “how can a fiber–optic cable change the sound?” … the answer is easier to explain than for almost any other type of cable. If the light source were a coherent laser, firing into a vacuum, all the light would stay straight, arriving at its destination at the same time. Even if the LED light source in a Toslink system were coherent, the light entering a fiber–optic cable is scattered and dispersed by imperfections and impurities in the fiber. This can be measured as a loss of amplitude … but amplitude is not the problem, a 50% true loss would have no effect on sound quality.
The problem is that the dispersed light does get through the cable, but only after it has taken a longer path, like a pool ball bouncing off the side–rails, causing it to arrive later. This delayed part of the signal prevents the computer charged with decoding this information from being able to decode properly, or even at all. The inability to decode shows first at higher frequencies (not audio frequencies, this is a mono stream of digital audio information), so reduced bandwidth is a measurable signature of light being dispersed by a fiber. The punch line: The less dispersion in the fiber, the less distortion in the final analog audio signal presented to our ears.
There is another serious dispersal mechanism in the Toslink system. The fiber is a relatively huge 1.0mm in diameter, and the LED light source is also relatively large, spraying light into the fiber at many different angles. Even if the fiber were absolutely perfect, the signal would be spread across time because light rays entering at different angles take different length paths and arrives with different amounts of delay.
The almost complete solution to this problem is to use hundreds of much smaller fibers in a 1.0mm bundle. Because each fiber is limited as to what angle of input can enter the fiber, there is far less variety, and far less dispersion over time. This narrow–aperture effect is similar to how a pin–hole camera can take a picture without a lens … by letting in light at only a very limited range of angles, a picture can be taken, whereas removing the lens from a wider aperture would make photography impossible. Less light gets through a multi–fiber cable, but the light that does 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 (better polymers and ultimately quartz), and less dispersion by filtering the input angle. How simple is that! Listen and enjoy.
Specifications:
Specifications
Type:
Audio
Termination:
Optical To Optical
Length:
.75 Meters
Dimensions (Shipping)
Width:
6.2"
Height:
8.4"
Depth:
1.1"
Weight:
0.3 lbs
What's In The Box:
Optical to Optical Audio Cable
Product Documentation
Warranty (5 Year Limited)
Warranty:
5 Years Parts / 5 Years Labor -Carry In Service
WARNING
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. California's Proposition 65 entitles California consumers to special warnings for products that contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm if those products expose consumers to such chemicals above certain threshold levels. We care about our customers' safety and hope that this information helps with your buying decisions. For more information go to
Proposition 65 Warnings
.
Shipping
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We do not ship to P.O. Boxes, APO or FPO addresses at this time.
You can count on OneCall to get your package there safe and on time. OneCall offers a variety of delivery choices for shipments to physical addresses anywhere in the contiguous United States. Not all delivery methods are available to all areas. So, call us toll free if you have a critical delivery need. We'll help you select the best shipping option.
Standard (via Ground Shipping):
Estimated delivery = 4-7 business days
Expedited Shipping (via 3-Day Shipping):
Estimated delivery = 3 business days
1-Day Shipping (via Overnight Shipping):
Estimated delivery = 1 business days
Freight (via Truck Carrier):
Estimated delivery = 7-14 business days
Please note:
Orders are processed Monday - Friday.
** Estimated delivery times based on in-stock inventory. Delays in processing and shipment may occur due to credit card decline, invalid information, weather or other causes outside our control. Oversized items (such as large televisions & tower speakers) ship via motor freight to the 48 contiguous states only. If a product is over 0, OneCall requires a signature when your package is delivered.
This is a safety measure designed to ensure that you receive your order. For example, if your package is simply left outside without your signature, the potential for loss increases considerably.
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OneCall uses FedEx Ground and USPS as our standard shipping method, and we process orders as late as 2 p.m. Pacific Time, so most orders ship the same day. Oversized items, such as large TVs and certain speakers, ship via motor freight and are strapped to individual custom pallets and monitored with ShockWatch™ devices.
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Saturday: Closed
Sunday: Closed
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