The amplifier is very strong, Mashallah. It doesn't consume a lot of electricity. It powers subwoofers for Bass. You can connect it to a car battery and run it. The amplifier is new. The price is 300. Its new price is approximately 400 or more. The reason for selling is that I bought two, and one is enough for me and more. I have a sound clip for the second one that I installed. For serious buyers.