Does a higher volume waste more energy??

Question

Does a radio waste more energy when it is turned up loud ?? is there a difference in energy usage from a radio that is turned up loud from one that has a lower volume?

Thnx :)

Answer 1

It uses more energy, but if you need or like the volume loud it doesn't waste any energy.

Answer 2

yes.  it can amount to a lot in rock concerts. In your car it can cost an extra $.05 per hour.

Answer 3

yes, the speakers in a radio work off from the vibrations created by a magnet on the back of the speaker, and it takes more electricity to make the vibrations stronger, and therefore louder.

however the extra usage is minimal.

Answer 4

The energy a radio uses is made up of 3 components. First is speakers, second is amplification of signal and third is finding and decoding the signal.

Finding and decoding the signal is very insignificant. Amplification and speakers   have  a power draw that is based on the maximum possible speaker output plus the actual sound level.

Thus you get lowest power use if your radio can only put out a very small sound (like ear buds) and the volume is turned way down.

As a young man I had a radio that did not require any battery or electrical source, and would power only one ear bud. That was a true marvel of energy efficiency.

Answer 5

It's only "wasted" if you're not using it.