Which connection allows control and communication between the components of the System 6000?

The connection that facilitates control and communication between the components of the System 6000 is the X-coupled Ethernet Cable. This type of connection is specifically designed to handle the high bandwidth and low latency requirements of audio processing systems like the System 6000. It enables efficient data transfer and synchronization between various units, which is crucial for maintaining the integrity of audio processing tasks.

Using Ethernet allows for a more robust networked setup compared to other methods, ensuring stability and reliability in communication. This is particularly important in professional audio environments where multiple devices need to interact seamlessly.

MIDI Interface, while it's a standard for controlling musical devices, is limited in terms of data capacity and speed compared to Ethernet connections. USB Connection can be useful for direct connections to computers but doesn't generally support the extensive networked communication needs of the System 6000. Optical Digital Cable, on the other hand, is primarily used for transmitting audio signals rather than for control and communication, which is why it's not the right choice for this context.