Poweramp

Power Amplifiers or the typical monoblock is a mono version of the same stereo amp has a much more highly rated power supply.

This doesn't necessarily give much greater power but usually, it provides monoblock versions with a great deal more grunt. At the heart is the power supply is the most important part of the power amp - it's what serves the juice to be able to drive the speakers, so when your reservoir is twice as big, you can effectively go a lot longer at the same level, or supply bigger bursts of power.