From what I understand, there is no way to increase earphone resistance by use of resistors in serial. Instead you increase the amps output impedance.
Suppose you have two different Headphones connected to a single amp by a Y-adaptor.
HP1 = Load of 400 ohms
HP2 - Load of 25 ohms
Suppose the Output impedance of the amp (Z) = 2 ohms
What is Z?
What is Load 1?
What is Load 2?
Do loads 1 + 2 sum together to equal the resistance seen by the amp? Does each individual Load remain the same?
Is it possible to "add resistance" to one headphone by adding a second headphone load via a Y-adaptor? Or are you just increasing the amps output impedance?
If you don't know what I am talking about, there are two articles will really help you understand things all good audiophiles should know : )
Google: "Headphone Impedance Explained" and see the "output impedance" link within that article. (Unallowed to link to that site directly.)
Thanks for any insight
Edited by SoundFreaq - 5/18/13 at 10:57am