This Soundcraft Si Expression 3 digital mixer comes with Version 1.7 build 9. It includes the correct power supply, ensuring stable and reliable performance.

To use this Soundcraft Si Expression 3 mixer, first connect it to the correct power supply. Then, connect your audio sources to the appropriate input channels. You can adjust the volume, balance, and other settings using the controls on the mixer. When you're done using it, turn it off and unplug the power supply. For maintenance, keep the mixer in a clean and dry place. Regularly check the connections to make sure they are secure. If you encounter any problems, refer to the user manual or contact customer support.