This Crown CTs 600 power amplifier comes with a firmware version of 2.1.1.2. It includes a correct power supply, ensuring stable operation. One thing to note is that the metal case uses generic screws.

Using this Crown CTs 600 power amplifier is easy. First, make sure to connect it to the correct power supply that comes with it. Plug in your audio sources to the appropriate channels. When using, keep it in a well - ventilated place to prevent overheating. For maintenance, regularly clean the exterior with a soft cloth. Check the screws on the metal case from time to time, as they are generic ones and might need tightening. Avoid exposing the amplifier to moisture or extreme temperatures.