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Do Pro Passive Crossover Networks Sonically Degrade

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  • Do Pro Passive Crossover Networks Sonically Degrade

    I have a handful of professional passive crossover networks in my various home-built PA cabinets.
    One pair is pushing 15 years old, and the rest at least 6 years old, but they all sound good to me, and I have never had complaints from the crowd.

    I wonder though, if they degrade in sound quality over time.
    Let's use a Peavey professional 3-way passive crossover network for example.
    Do you think one that is 10 years old would sound noticeably different than the same model that is brand new?

    I'd hate to spend around $100 for new crossovers, just to do A/B comparisons.https://dltutuapp.com/ https://9apps.ooo/https://showbox.software/
    Last edited by divines; 11-09-2018, 02:07 PM.

  • #2
    The only way they could degrade is if they use NPE, non-polar electrolytic caps, which can change in value over time. It would be a very easy job to replace NPEs with polys.
    www.billfitzmaurice.com
    www.billfitzmaurice.info/forum

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    • #3
      Originally posted by divines View Post
      ...Do you think one that is 10 years old would sound noticeably different than the same model that is brand new?

      I'd hate to spend around $100 for new crossovers, just to do A/B comparisons.
      Hard to say, but because "Pro" speakers often use a High sensitivity Horn, there is attenuation to match the other drivers.
      Since "Pro" speakers are driven much harder than home speakers - the resistors run hot and the HF drivers fail more often than the other drivers - the reason why there is an aftermarket in replacement diaphragms.
      I've encountered more L-Pad and resistor failure than other passive parts failure.
      Passive crossovers in commercial "Pro" Cabs are not often made from the best parts nor optimum, particularly considering the heavy load demand




      "Not a Speaker Designer - Not even on the Internet"
      “Pride is your greatest enemy, humility is your greatest friend.”
      "If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter."

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