Ans: The wattage rating of an amplifier simply tells you about the overall output capacity of the amplifier and whether it is the right one for you or not. As you may have guessed, a 2000 Watts amplifier would have more output capacity and would be suitable for more powerful sound systems than a 1500 Watts one. But, you should also consider the expenses here since a 2000 Watts amplifier would be quite expensive. And, you probably won’t even need such a powerful AMP for any standard home theater system or car audio system.