Grannyring, bought a number of Duelund CAST PIO caps as part of a crossover upgrade. These caps are out of stock most places.
So for the midrange section, where I need 13.0uF, I bought 8.2 + 4.7 + 0.1 for one speaker and 8.2 + 3.3 + 1.5 for the other speaker.
The Duelund CAST PIO 100 Vdc caps are disk shaped, with greater uF values (like 8.2 in my case) having modestly greater height or thickness than lesser values like 4.7uF, but the roughly 7” diameter is the same for the two values just mentioned and I think for the 3.3 as well.
It seems to me that the only real option is to put the caps on top on each other, like layers in a layer cake. The leads come out of the top of the caps, close to the outside of the disk-shaped caps. So I would need some sort of spacers so that the top caps aren’t resting on the leads of the cap underneath.
I will also need a way to secure the caps to the board. I don’t like the idea of plastic ties per se, and might be more interested in a bolt screwed through the board with the thread end toward the ceiling, and some sort of clip. Several bolts / clips per cap. I may end up having to settle for plastic ties, though.
I won’t have this problem for the woofer section, where I will be using Auricap XO+ (a brand new ‘uptier’ from the XO which HHHiFi rated 11 vs 15 for the Duelunds that I selected for the other sections), or one of the tweeter caps. The other tweeter cap is 5.6 + 0.22 + 0.22 to get to close to 6.0, so I think only the 13.0 need in the midrange section needs a solution.
Any thoughts on how to best put 8.2 + 4.7 + 0.1 on the one board and 8.2 + 3.3 + 1.5 on the other, and whether stacking the discs on top of one another might cause performance issues due to the magnetic fields of each etc?