This unit comes without a power supply. It runs on firmware version 8.5.4.43, offering reliable performance for your digital signal processing needs.

Using this Symetrix Prism 4x4 Digital Signal Processor is easy. First, make sure you have your own suitable power supply as this unit doesn't come with one. Connect it to your system according to the standard wiring rules. When it comes to firmware, the 8.5.4.43 version is already installed, and it should work smoothly. But be careful not to expose it to extreme temperatures or moisture. To keep it in good shape, clean it gently with a dry cloth regularly. If you encounter any problems, check the connections first and then look into the firmware settings.