Norman Audio

Kimber OPT-1 Optical Cable

Construction of the Kimber OPT-1 begins with medical-grade light conducting fiber. The fiber is then encapsulated in a thermal barrier that inhibits heat warping of the light-carrying fiber. A mechanical damping outer barrier is also applied to further protect the cable from damage. The ends are then cold-polished helping to further reduce the incidence of reflections. With such excellent light transfer characteristics, the result is a sound which is full, relaxed and transparent.

The Kimber OPT-1 starts with medical grade light conducting fibre. The fibre is then encapsulated in a thermal barrier. This inhibits heat warping of the signal-carrying fibre.

The outer jacket protects the barrier, the barrier protects the fibre. This fibre was the result of the extensive research and unlike glass, it will not microscopically fracture when flexed.

Kimber Kable OPT-1 - Norman Audio

The ends are then cold-polished helping to further reduce the incidence of reflections helping to produce excellent light transfer characteristics. OPT-1 will provide years of predictable and consistent performance, all in a cost effective package.


  • Medical-grade light conducting fibre
  • Dual layer thermal and mechanical damping barriers
  • Toslink connector

Kimber Kable

In the mid ’70s Ray Kimber worked at a sound and lighting company in Los Angeles. The first big discotheques were being installed at that time. Traditionally sound and lighting systems were not installed right next to each other, nor did lighting systems ever have such an array of noise generating fixtures, such as strobes and other flashing and dimmable lights. But in a discotheque the lights and speakers are installed next to each other. The speaker cable was acting as an antenna array and bringing noise from the lights into the sound system.

In an attempt to solve the problem they encased the speaker cable in a steel conduit. This did help with the noise, but it also had the unintended result of lowering the fidelity of the audio. This happened because the steel conduit interacted with the magnetic field of the speaker cable.

Ray had the idea of some counter-rotating sets of conductors to cancel the magnetic interaction effect, but then also surmised that the counter-rotating sets of conductors would likely not pick up noise even without the conduit. He was correct, the noise was greatly reduced! But, Ray was also quite surprised at the difference in perceived audio quality. It was that discovery of noise elimination and improved fidelity that set him on the path to develop cable designs.
To his great satisfaction the finalized version of his braided wire concept not only rejected the (RF) noise, but allowed the system to sound different, better. It was after this period of discovery that Ray decided to take a risk and began entertaining the idea of selling his new discoveries.


More info