Another simple way to look at it to compare a much of AA batteries connected in series to get 12V and compare that to a car 12V battery. Both will put out 12V but the AA doesn't have much current capacity.
Amplifiers: High Current? High Voltage?
I've seen alot of mention about current-based and voltage-based amplifiers, and I am confused. I thought all amplifiers recreated the wave form by varying voltage, and their interaction with the speaker (and the impedence characteristics between the two) dictate what current is drawn. I understand that the power supply of some amplifiers is less current restricted than others, but my (current) understanding also says that all amplifiers work by controlling voltage. Is there really such a thing as an amplifier that controls current rather than voltage?