How much power does a headphone consume?

[Deepak]

Where does it draw the power from? Headphone port I guess.

 

[Gubbi]

Depends on how loud you're playing, no ?

Anyway, Google is your friend.

Found this.

Cheers
Gubbi

 

[Skrying]

Yes, the headphone can draw the power from the port. You can also use headphone amps if your pair of headphones needs a lot of power to sound good. An example of that would be higher end Sennheiser headphones for the most part sound best on headphone amps.