Mount x-over cap to back of mid-woofer?

[ranshdow]

Hi,


I'm building the Seas A26 speaker kit and I'm looking for a place to mount the tweeter's single crossover capacitor, a Mundorf Supreme. The back of the mid-woofer has an extra tab opposite the speaker's terminals (first photo). Is there any reason not to ziptie the Mundorf to this tab? The cap is about as big as a C-cell battery, and I don't want to wire it point-to-point to the tweeter without anchoring it to something. An alternative is to mount the cap using one of these grommet things to either the interior front or interior rear of the speaker cabinet. Any advice?


Thank you!

 

[mike7877]

It's always good to avoid vibration of components, for both performance and longevity reasons. For high level signal, it's probably more longevity reasons you want to avoid vibration. Maybe ziptie it as loose as you can with a couple thin sheets of Styrofoam wrapped around the cap to isolate it from the woofer. Heat shouldn't be an issue

 

[ranshdow]

Thanks Mike. I was worried both for vibration and for interference with sound pressure waves, if either was a known issue with mounting a large cap behind a woofer. Probably not the best spot for it, unfortunately.

 

[rayma]

There's also a series resistor to match the levels, so both parts would have to be mounted
somewhere, usually on the back near the binding posts. Just screw down one mounting
base for each part. I've used terminal strips, so the solder joints wouldn't be flying around.