Input circuit board 18V

@steve91765 if you are referring to the main board (located between the two speakers) it'll be difficult. There are none of them being openly offered. You may need to scour places like eBay etc. to try and find a speaker that has damage other than that board. Then you you could use that to harvest the board from.

Of course, you could also let us know what happened to yours and possibly consider fixing it.

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