I'm afraid that I have no answer to this one. Are we talking about home theater here, or is this in a car stereo? The Infinity Kappa Perfect 12.1 is a 12" subwoofer driver for car audio installations, so I'm hoping it's the latter. You might be better off asking the question in the Outlaw to Outlaw area , since this area of the forum is not intended for Q&A's. Even there, you may not find a lot of help around here if it is a car audio question -- this site focuses primarily on home theater.

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