My spouse bought a used Magnepan center channel a few years ago which she found on Audiogon. She sent it to the manufacturer in MN because it was a different color than our other Maggies. They checked the speaker for working properly (it did), put a different color on it and sent it back for a nominal charge.

As Kuan suggested, they will also send parts.

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Toyota is a leader only because their drivers block everyone behind them. Oh what a feeling.