What is an essential feature of the S6000 in terms of audio flexibility?

The ability to perform custom signal routing is a fundamental aspect of the S6000, enhancing its audio flexibility significantly. This feature allows users to design and configure signal paths according to their specific needs, ensuring that audio can be processed and modified in a way that best suits the given application. Custom signal routing enables sound engineers to optimize the audio workflow, integrate various effects, and achieve desired sonic characteristics that may not be possible with fixed or predefined signal paths.

This level of adaptability is essential for both live sound scenarios and studio environments, as it provides the ability to react to different audio sources and effects chains dynamically. It also means that users can prioritize certain elements of their mixes or recordings in a highly tailored manner, which is critical in professional audio work. Therefore, the emphasis on custom signal routing reflects the S6000's design philosophy of offering comprehensive tools to meet diverse audio processing needs.