Firmware Version 2.1.1.2. Comes with a correct power supply. Note: The output section uses generic screws.

Using this Crown CTs 600 power amplifier is easy. First, connect it to the correct power supply as included. Then, hook up your audio devices to the appropriate channels. When using, make sure the volume is adjusted gradually to avoid sudden loud noises. Regarding maintenance, keep it in a dry and well - ventilated place. Regularly check the screws on the output section, even though they are generic. If you notice any issues, contact customer service right away.