Piezo tweeters?

I am working on a project and I have found this post to be the most helpful on the internet as far as how to properly wire these things.  I just have a couple questions maybe you can help or maybe not.  Normally with no parallel resistor, the piezo ignores the crossover and I had to put a 2-ohm resistor in series to quiet it down a bit.  Works fine but still the piezo is a bit too harsh.  So I decide I want to add the parallel resistor and I really don't know what resistance to choose is the first issue.  These speakers are rated at 4-ohm and the woofer is, there is also two horns that are vintage and are 45-ohm (22.5 in parallel) which isn't really my main concern at the moment.  And then the piezo's which apparently does not matter if they are parallel or not since their impedance is something crazy high like 5k.  The first question is, would i not want to do the piezo's at 4ohm?  wouldn't that with the woofer drop the rating to 2ohm?  Also have to consider when I run the pair of cabinets, would that not drop to 1ohm?  I have a hard time understanding when the ohm's drop.  I totally understand how parallel wiring works, so if the tweeters are parallel to the woofer it should drop again right? and two cabinets into an amp would be parallel again??? That I have trouble understanding.  I am actually running these two musician speaker cabinets on a higher powered home amp (left and right channels currently) but in the future will have my PA system rated at 2ohm back.  So the question is, would it not be better to choose 8ohm or 16ohm for the piezo bank?  Then finally this last question is rather important.  Normally the piezo's without resistor over-power the speaker.  but with the shunting parallel resistor (and crossover removed for testing) they are just slightly too quiet.  What can be done anything?  Could i change the 8ohm resistor in parallel to a different one in order to get more voltage to the piezo's?  and in regard to balancing the impedance of the speaker as a whole?  I know this is an old thread, but any help is appreciated.  Seems like you are the only one that understands how to properly wire these things.  Thank you

Edited by joshuamonger - 31 January 2024 at 2:24pm