Today I removed the passive radiator from my SDA2a's to see the part number, SW121, easy enough. I'll get into the reason I was looking at the part number another day.
Thats when I noticed I never re-built the low pass x-over. I honestly looked in the cabinet and said to myself, what the f is that, thats when it dawned on me I never did them.
After inspecting that x-over it looks like the two 130uF's are run in parallel
and one 20uF needed. I looked at the schematic and being a novice could not figure out what the hell it is I need. Please help me out alittle.