Yes--the same is true for amps and speakers. An 8 ohm load requires more current than a 16 ohm load. In fact, this theoretical output stage we've been discussing is exactly the same as one in an amp, but on a smaller scale. The difference is largely going to be the amount of current they are designed to put out.
I agree--it's sort of counter intuitive. When you think about something being a heavy load (in the electronics sense), you automatically expect a large number. The opposite is the case.
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