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Push-pull technology

Since I listened for the first time to a pair of 20.1s I have been curious about push-pull technology on those loudspeakers.
I am trying to figure out how those sandwitched panels are mounted.
Is it something like this?

ooooooooooooooooooooo
N/S - S/N - N/S - S/N
---------------------
xxxxxxxxxxxxxxxxxxxxx
---------------------
S/N - N/S - S/N - N/S
ooooooooooooooooooooo

ooo = pole pieces
--- = mylar
N/S = magnets
xxx = voice coil

What about tuning discs?
Has anybody ever seen a naked 20.1? PG, what about you?
Having similar panels (like 2 pairs of 2.5s), would it be possible to build your own?
What about XO?




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Topic - Push-pull technology - Bibo01 13:03:47 11/26/09 (29)

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