QED's Performance Optical Graphite is a multi-award-winning Toslink digital optical audio cable. This digital optical cable lets you experience superior sound quality when connecting DACs, TVs, CD players and Blu-ray™ players to amplifiers or receivers. The cable uses an acrylic polymethyl methacrylate (PMMA) optical fibre to comfortably carry the high-bandwidth signals required by today's multichannel digital audio connections. It is also optimised for a very low 'jitter' design, reducing digital errors and ensuring cleaner audio data transmission.
Technical specifications
| Stepped refractive index | Stepped refractive index |
| Fluorinated Polymer Cladding Material | Fluorinated polymer cladding material |
| 24K gold plated Toslink connectors | 24-carat gold-plated Toslink connectors |
| Precision engineered plug with integrated grip | Precision-engineered plug with integrated grip |
| Attenuation < 0.15dB/m (650nm) | Attenuation < 0.15 dB/m (650 nm) |
| Numerical Aperture 0.5 | Numerical aperture 0.5 |
| Minimum bend radius 9 mm | Minimum bend radius 9 mm |
| Warranty | This QED cable is covered by a two-year guarantee, extendable to five years by registering the product on the QED website |