Mounting Depth Space From Back of Mag

[chibahawk 10+ year member]

Just made a box with the following dimensions for a 15" Magnum:

35x16x10.5

The depth of 10.5 leaves about 1.75" from the back of my sub to the back of the enclosure. I've seen a difference of opinions about the amount of space you should leave behind a woofer, but what kind of effects should I look for if there's anything wrong with this?

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[berserker 10+ year member]

We always just made sure the to leave the diameter of the pole vent behind the driver and the surface such as the enclosure wall or bracing, etc as a minimum. You should be fine with that space close to two inches, just dont restrict airflow if you can help it.