This Audio Logic D11 Digital Room Delay doesn't come with rack ears. It includes a correct power supply. Please note that one of the input screws is missing, as shown in the photos.

Using the Audio Logic D11 Digital Room Delay is straightforward. First, connect it to the correct power supply that comes with the product. You can then start using it to add digital room delay effects to your audio. When handling the product, be aware that one of the input screws is missing. Try to avoid applying excessive force near the missing screw area to prevent any further damage. For maintenance, keep it in a dry and clean place. Regularly check the connections to ensure they are secure. If you notice any other issues, it's best to consult a professional audio technician.