Yes, understood. Tolerances wise it may vary as well to where it would fit as the dimensions do align upon review. Overall a minor/common modification if someone wishes to use the speaker. But for those that don't want to deal with that, there's other options as you mention. I ultimately went a different route with the infinity shallow 12" that works great.It did not fit, without modifying the box. I didn't want to do that, maybe others do. The screw holes wouldn't have lined up either.
Anything will "fit" if you modify it.
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