Which headphones are more power hungry?


Let us pick some headphones for the test...


Here is the list from www.headphone.com. So, which pair you believe need the highest power to drive?












"Selection Guide: Top Picks for Audiophiles" retrieved 10 Feb 2014

Speaker Amp Power Calculator


Instruction:
  1. Find the sensitivity on the speaker spec sheet. 
  2. Measure the distance between listener and the speaker.
  3. Input the data to below calculator.

Input:

Dynamic Range:
dB

Listening Distance:
m

Speaker Sensitivity:
dBW



Glossary:

Dynamic Range:
The ratio of the amplitude of the loudest possible undistorted sine wave to the noise amplitude. 100dB is the default value and is recommended.

Listening Distance:
The distance between the listener and the speaker.

Speaker Sensitivity:
The acoustical level that the speaker transducer(s) can produces under 1 watt.

Result:

Min Power Output:
Wrms

Glossary:

Min Power Output:
The min power is needed to drive the speaker reaching the targeted Dynamic Range and specified Listening Distance.

Headphone Amp Power Calculator


First, find the impedance and the sensitivity on your headphone spec sheet. Below is the example where you can find the values.

Example: Headphone Specification of Sennheiser HD650