Headphone Power Calculator

Before you make that amplifier purchase, check if your audio source is already sufficiently powering your headphones. Take this calculator with a pinch of salt.

Pick a headphone (Optional) ¹

Headphone Sensitivity

db(1mw)

db(1VRMS)

Headphone Impedance - ohms

Loudness - dBSPL

Required Power

milliwatts

Required Voltage

volts RMS

Required Current

millamps RMS

Device compatibility

Mobile Devices²

Laptops

Amps³

DAC/Amps Combo³

For more detailed readings:

https://www.reddit.com/r/headphones/comments/15wunp/guide_dacs_and_amps/?st=j09h188b&sh=b8821f7e
http://www.apexhifi.com/specs.html

Sources

http://www.head-fi.org/t/668238/headphones-sensitivity-impedance-required-v-i-p-amplifier-gain
http://www.anandtech.com/show/8554/the-iphone-6-review/11
https://docs.google.com/forms/d/e/1FAIpQLSdgOJc_Vy_h4Kg7pP5IrWWysgEb29qjO6j3OoaSaUq3NSuN5g/viewform?c=0&w=1