I purchased a 12" sealed truck box that is 20"W x 15"T x 7.5" Bottom Depth x 5" Top Depth and is a total of 0.9 Cu. Ft. size inside the box.
I have been looking at 12" subs that call for like 1.1 up to like 1.35 cu. ft. volume boxes but would fit perfect and are better subs for the money as opposed to others like a shallow mount woofer that is good for a smaller box like that but doesn't have NEAR the power and low end range the regular sized subs have.
I have about 7" mounting depth so a good amount of regular subs fit my box ... it's just the volume size for these calls for a larger box then my 0.9 cu. ft box I ordered (and I got this box cause it fits perfectly under the back seat of my GMC Sierra crew back perfect ... I don;t have room for a larger box that 1.0+ sized .... the best I could find to fit my truck in a single sub application is 0.95 ... so the 0.9 size is all I can do, but I sure wish I could get a full size sub to get the full low end potential).
Any thoughts on if this is okay to do? would putting a sub that wants a 1.1 to 1.35 cu. ft volume in a box that only has 0.9???
Thanks so much for your thoughts and feedback.