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cutout diameter of 18" american bass HD

869 Views 2 Replies 3 Participants Last post by  Keveeno
anyone have this?

dont have subs infront of me (at customers location) and ready to make the cutout. would ask them to measure but they seem somewhat incompitant and icant find out online. called my local dealer (he didnt know) and the american bass number on site went to message.

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spec is 16.5 but noway in hell there fitting in there. we did 16.75 and they fit very tight.
What about the hd 15's? What's the cutout diameter there?
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