I searched around for a while on the forums but didn't see this particular variation of the question answered anywhere.
From the other threads I've gathered that by plugging two headphones of different impedance into a splitter, you'll run into volume issues.
My question is about what impedance differential between the headphones is "acceptable".
I have a set of Denon D2000s.
They are 25 ohm.
I'm going to buy another set of headphones for my wife so we can watch movies.
I've been shopping for a 32 ohm set (Beyerdynamic 770 or 990) because I figure a 7 ohm difference will be negligible.
I've also assumed a 16 ohm set would be fine (Beyerdynamic Custom One).
But could I get an 80 ohm set and still be fine?
My receiver output jack is 100 ohm (in case that matters).
Thank you for your input!