Review on 🔊 PAC BB-1PR: High-Quality Bass Blocker/Passive Crossover Pair for Enhanced Audio Performance by Roberto Evans

Not much to say about these capacitors. They do pretty much what you would expect proper bipolar capacitors to do. The packaging is a bit redundant (which presumably makes it difficult to place inside) but overall I don't think that's really a problem. The capacitors seemed pretty close to their rating (for the record, that's 133uF - I forgot the exact value they calculated as capacitors tend to come in some very specific sets), but then I just could check what I obviously had on hand, and while I haven't tested whether they can handle the full 50W output for long periods of time, I've had no problems with them in the intended application (and in general, admittedly, a lower powered speaker system ) without generating much heat or anything. As you'd expect they work exactly as they should in a first order filter and the low frequencies are actually reduced enough to improve the crossover and avoid distortion and clipping. So yes, they work as they should. No complaints or really very serious room for improvement.