Audio crossover question

[silviasol]

I have a bunch of these armature driver in ear headphones that I have been repairing.  Trying to figure out some things to rewire these with different high quality components.  Could you look at the pictures and help me out?  Trying to figure out if the low can benefit from a capacitor and if the sound will benefit from a different wiring scheme.

https://imgur.com/a/z68LjHV