Klipsch Heresy I Speaker Crossover Capacitor Upgrade

This is a tutorial about how to replace the crossover capacitors in a Klipsch Heresy I speaker (yeah, I know, pretty limited audience for this but it's also a good way for me to document and remember what I've done). The first part shows the microphone setup that I used to test the frequency response (using FuzzMeasure for Mac) before changing the capacitors. The response curves (at the end of the video) measured after the installation of new capacitors show little change but in listening I do feel like treble sounds are better. If you have a set of these early Klipsch speakers you might consider updating the crossovers by replacing the capacitors. It’s my understanding that after about 20 years capacitors drift off from spec and your speaker will not sound like it did when new. I’m not absolutely sure the capacitors in my speakers had drifted very much with age - yet - but it’s a fairly simple process and very inexpensive. I suspect that the capacitors in a set of Klipsch KG4 that I also own have drifted more from spec than these capacitors.
If you have Klipsch speakers - Heresy or other Klipsch Heritage speakers - and you're actually considering doing this I will be glad to answer any questions you may have about the process if I haven't adequately covered it in the video. The biggest single issue is having some prior experience using a soldering iron. If you don't I would recommend practicing some on some scrap pieces of wire. I didn't show the soldering process in detail and that's partially because I'm no expert at soldering but at least good enough to make a decent connection and not damage critical electronic components.
Crossover upgrade kit (primarily new condensers) from Bob Crites at critesspeakers.com