Many audiophiles find that TOSLINK doesn't sound "good", but using a good set of cables like the TC-3618 can easily save the day. Contemporary manufacturing processes and materials allow for a level of precision and performance in the TC-3618 that are unattainable in standard optical cables. The TC-3618 boasts a quality substrate, multi-fiber conductors,  and low-loss flexibility. This provides faultless transmission of even the most challenging multi-channel digital soundtrack.

There are two major problems that can make a difference in the sound of a digital signal: jitter and data error.

- Jitter spreads the digital data out over time, smearing or blurring of the sound. An often-overlooked cause of jitter is bandwidth limiting of the digital signal.

- Data error occurs when data arriving at the D/A converter is either missing or wrong. The reconstruction of damaged data through interpolation, would result in less obvious, but still compromising effects on fidelity.

There are four factors that separate the TC-3618 from standard TOSLINK cables:
1. Very high purity material with a 10MHz bandwidth.
2. Highly polished and properly fitted termination.
3. Flexibility without signal loss,.
4. Use of high quality components.

The TC-3618 is audibly indistinguishable from coaxial S/PDIF.

Assemblies using large fibers or just a single fiber assembly suffer from greater signal attenuation and reflection than multi-fiber assemblies. This occurs from bending the TOSLINK cable in order to connect up your equipment.

The TC-3618 is made from multiple fibers of a very small diameter and has a larger diameter than a standard TOSLINK.When the signal is multi-channel 24 bits audio and/or sampling rates over 96KHz, this bandwidth is critical. The TC-3618 is an essential lead for DVD DTS or Dolby EX soundtrack with its wide bandwidth.

A non-reflective cladding which also maintains a proper geometric relationship to the conductor surrounding the internal fibers. That is further enhanced by a hard wearing protective nylon mesh, designed to protect the TC-3618 from the most common forms of damages that unprotected optical cables suffer from.