The CFA - CKI400S - AC comes with a correct power supply, ensuring stable and reliable performance for your professional installation needs.

Using this Crest Audio CKi 400S amplifier is easy. First, connect it to a suitable power source with the provided correct power supply. Make sure the power is turned off before making any connections. When using, place it in a well - ventilated area to avoid overheating. Keep it away from water and dust. For maintenance, regularly check the power supply and connections for any signs of damage. If there are any issues, stop using it immediately and consult a professional.