Aiwa NSX V 900

There is a service manual at elektrotanya. It will tell you how to disassemble the plastic front, and when you take drive units out,
you will spot if any of the passive x/o parts were installed at all. It is likely to have a few capacitors as high pass filters for tweeter/s,
midwoofer filterless.
 
Thankyou for your prompt response.
That way I checked it...it's using only few capacitor for mid and tweeters.. but I am trying to find out more better one with three way crossover using with inductor, capacitor and resistance. Speakers are not mentioned specific labels. If you know about more please let me know.
Regards
 
Ok regarding your crossover the woofer is working as full range
Tweeter has capasitor in series
Super tweeter might be in parallel with the tweeter.

What about the mid one are they directly connected to to output or any capasitor in between ?
 
If you ask my opinion everything is allready crossed it is best to leave it as is, readymade crossovers in most cases perform bad as they are not designed for your setup
The cut off frequency, ohms ect ect.

But you can try by connecting readymade crossover to one of the bookshelf speaker and compair it with the other one.

so it comes to your choice and preferences Which ever performances better you can go with it