To summarize:
The Pearl already has a rumble filter (.2uF/100k ) between the stages
10uF and the input impedance of the next stage (10k, 50k, 100k) will form a basic high pass filter.
You can use a big polypro (like the pearl PCB), non-polarized electro or polarized electro (if you know what you're doing)
Elna Silmic II electro ! But polarized, so careful!
Bypass the electro with your favorite cap (Pan P poly, film/foil, polysty, ...) and you're good-to-go!
See my Pearl 1.5:
http://www.diyaudio.com/forums/anal...l2-pcb-but-havent-started-yet-pearl1-5-a.html
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