Help with Tannoy Eyris crossover mod

[iggy111]

I would like to modify the crossover on my Tannoy Eyris 3 speakers but I need help. I only know basics of electronics and I'm stuck at the first step as I can't find the driver measurements anywhere, so if anyone has these please upload. I could measure them through my soundcard and even build a diy Panasonic capsule mic, but would like to have the graphs and numbers anyway.

To begin with, could someone comment on this crossover topology and what could be improved here? If I wound air-core inductors to replace these solid-cores what problems could I encounter, and what difference in sound can I expect?



I can't measure inductivity, is there some kind of procedure to do that with a cheap voltmeter?



Thanks

[iggy111]

Ok, I forgot about crossover frequencies, it's 200 and 2200Hz. And here are the pics again, something wrong in the first post.

http://www.diyaudio.com/forums/membe...22-eyrisxo.jpg

http://www.diyaudio.com/forums/membe...ure321-xo1.jpg