Peace be upon you. I have a vintage Yamato amplifier, 1200 watts, it works, there's nothing wrong with it. And I have a 1300-watt subwoofer, it's new, I used it for only a week and it works, there's nothing wrong with it. If you are interested in them, contact me, but do not undervalue the price. Give me your price and we'll see if it suits us. The amplifier is 300﷼, the subwoofer is 400﷼.