@erik_squires Thanks for the tip about ESR. I was told about that a few months ago, but then I forgot! It sounds like I should leave the woofer caps alone since I can't confirm any ESR values.
Bypassing woofer cap -- Value too small?
As part of a crossover upgrade project, I will be changing a couple 125uF Bennic bipolar electrolytic caps in a pair of woofer crossover networks to Mundorf AC RAW bipolar eCaps. In storage, I have a couple unused Duelund CAST PIO CuAg hybrid caps with values of 0.022uF and I’m considering using them to bypass the large value Mundorf electrolytics. (I’m not interested in bypassing any caps on the mids/tweeter networks). That Duelund value is only 0.02% of the larger electrolytic cap value. Is that too small of a ratio? Any downside using a value that small that I should know about? I’m looking for more clarity in the 50hz-300hz range that the woofers’ response spans. Thanks in advance.
(The rest of the woofer cap story, in case it could be helpful... There are two other large value Bennic bipolar electrolytic caps in each of the woofer networks, both with values of 250uF each. I’ve decided to replace them with 200uF Mundorf AC RAW bipolar ecaps and add 47uF Jantzen Standard Z-Caps (metalized PP foil) in parallel on both. This is about 25%, or 1:4 ratio, so very different than the above proposition.)