Is there is a need to include a series capacitor to protect the CD? I'm not measuring at loud volumes on anything.
If the answer to the above question is "Yes" - would it not impact the measured phase? I'm currently measure using ARTA's semi-dual method. If I use a 50uf or 80uf capacitor to protect the CD - it seems to impact the response (albeit slightly). How does one typically account for the impact of the protection capacitor on the measured response and phase when one gets to the crossover design stage.