The award winning ‘Performance Graphite’ Optical cable allows you to experience superior sound quality when connecting DAC's, TV’s, CD players and Blu-rayTM players to amplifiers or receivers. Performance Optical uses a polymethyl methacrylate (PMMA) acrylic glass optical fibre to comfortably transmit the higher bandwidth signals demanded by today's multi-channel digital audio links. The cable is optimised for a 'very low jitter' design to reduce digital errors, making for a cleaner audio data transmission. Here at QED we are so confident about the performance of our product that we offer a lifetime guarantee.
The new, award winning ‘Performance Graphite’ Optical cable utilises the superior PMMA acrylic glass optical fibre previously only available in our ‘Reference’ range products.
The new optical fibre boasts half the signal attenuation per metre of the previous model, which means ‘Performance Graphite comfortably transmits the higher bandwidth signals demanded by today’s multi-channel digital audio links.
The cable features a stepped refractive index core that together with precision cladding techniques minimises light absorption and modal dispersion of single mode optical signals at the fibre boundary.
This reduces the angle of incidence at which total internal reflection occurs so that more rays can propagate along the cable, which in turn makes for decreased jitter and improved audio data transmission.
STRUCTURE OF TORAY OPTICAL FIBRE
AND DIAGRAM OF LIGHT TRANSMISSION
Very Low Jitter
Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. A cable displaying very low jitter has been measured at
Polymethyl Methacrylate (PMMA) acrylic glass optical fibreThis new optical fibre boasts half the signal attenuation per metre of the previous Performance model, which means ‘Performance Graphite' comfortably transmits the higher bandwidth signals for multi channel audio.
Very Low Jitter DesignAt QED we have identified jitter or distortions caused by errors in the light transmission as a major factor in the deterioration of the audio signal. By incorporating precision cladding techniques jitter is reduced enabling a cleaner signal with better dynamics and a wider sound stage.
Very Low LossVery Low loss < 0.15dB attenuation per metre
SpecificationsPlastic Optical Fibre (POF) core of acrylic glassStepped refractive indexFluorinated Polymer Cladding Material24K gold plated Toslink connectorsPrecision engineered plug withintegrated gripAttenuation ‹ 0.15dB/m (650nm)Numerical Aperture 0.5Minimum bend radius 9mmQED Lifetime Guarantee
What Hi-Fi? Awards Best Optical Interconnect 2012, October 2012
" What Hi-Fi Award Best Optical 2011"
What Hi-Fi? Awards Best Optical 2011, October 2011
"we heard improvements in system sound when using the QED, including greater detail and dynamics"
What Hi-Fi? Sound and Vision - 5 Star, August 2009