I just made a bizarre discovery and am curious to hear your opinions. I got bored and started using my multimeter to measure the actual impedance of the drivers of my various headphones. All well and good until I got to my HE-500s. To my dismay one driver measured at 45ohms and the other at 30ohms. I then changed the cable to another one to make sure it wasnt defective and was getting the exact same readings.
Now the thing I cant get my head around is given that one driver is higher impedance than the other wouldn’t that cause one channel to be quieter than the other as less current can flow to the driver with the higher impedance from the amp at any given volume? In practice this doesn’t seem to be the case at all as I have a perfect centre image and channel balance seems perfect. Can someone explain to me how this is even possible? I’d imagine one channel would be louder than the other by a noticable amount.
Anyone who is more versed on this topic I’d appreciate your opinion.