I need to repair a nice pair of Pioneer 3-way speakers that cost the equivalent of US$2000 when they were built in 1986. At the time, these were the best consumer-use speakers Pioneer made (excluding the TAD line). I just reconed the woofers and all the transducers sound excellent, except there is intermittent noise coming from one cabinet that is almost certainly due to the crossover network. I am assuming it is the network because it persists 1) regardless of what amp I use, and 2) even after I swap the drivers between the two cabinets.
I have never had to troubleshoot and repair a passive crossover network before. This is a somewhat more complicated network than the ones I have made myself in the past, as this is a "Watkins woofer" (using dual voice coils to extend the bass).
What parts can go bad in a passive XO? I am guessing it must be the capacitors. Should I just replace all the caps? Some of them are quite large and probably expensive. Any advice on how to proceed would be appreciated. I don't have much in the way of testing and measuring equipment.
Thanks!
Christopher Witmer
I have never had to troubleshoot and repair a passive crossover network before. This is a somewhat more complicated network than the ones I have made myself in the past, as this is a "Watkins woofer" (using dual voice coils to extend the bass).
What parts can go bad in a passive XO? I am guessing it must be the capacitors. Should I just replace all the caps? Some of them are quite large and probably expensive. Any advice on how to proceed would be appreciated. I don't have much in the way of testing and measuring equipment.
Thanks!
Christopher Witmer
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