ENERGY Audyssey A5+2 crossover modification

Hello,
I have a pair of well beloved ENERGY A5+2 bipolar speakers. They are dated by 1999 but still enjoy my family a lot.
Currently I'm looking the way to update or renew the crossovers with better quality components so I would appreciate any advice in the case.
The 8" sides firing woofers connected in series. 7 Ohm each:
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The mid side and the tweeters:
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I know the photos are not the best quality but I can make closer any part here.
 
Welcome to the forum!

I'll start by saying that 25 years is not particularly old in crossover terms.

You may have contracted a particularly virulent case of "crossovus upgraditus" which is doing the rounds on this forum! 🙂

Which components do you think are in need of "updating" and why?