This rating means that you should be able to feed this speaker up to about 120 Watts of a musical signal for a long period of time without overheating and damaging the speaker, but it is not a guarantee of that.

How much power is 120 watts?

At 120V, 120 watts make 1 amp. That means that 1 amp = 120 watts.

Does watts mean more power?

What does a Watt mean? The Wattage of the light is the amount of energy it takes to produce a certain amount of light. The higher the wattage, the brighter the light, but also the more power it uses.

12V power supplies (or 12VDC power supplies) are one of the most common power supplies in use today. In general, a 12VDC output is obtained from a 120VAC or 240VAC input using a combination of transformers, diodes and transistors.