For many years i was convinced after testing various caps that pio caps was the only way to go for crossovers in horn loudspeakers. During a crossover modification , a wrong clumsy movement led to the destruction of the leads of an expensive pio cap. Replacing it was out of the question so I gave these jantzens a try and oh boy !!! These caps for the tweeter and midrange are really musical not so laid back as the pios but not as edgy as other boutique caps. Really impressed