Hifionics GLX12D4 - Manual (Page 7)

6
Subwoofer Dimensions
B
A
C
GLX10D4 GLX12D4
A 10.31” 12.28”
B 9.06” 10.59”
C 2.93” 3.01”
Due to the vented backplate, you must allow for an
additional 1” behind the subwoofer when designing
your speaker enclosure.