well it has no max so idk what it means i guess its true rms i hope anyways
and box specs
depth
17 1/8 w/1/2 recess on front and back
width
32
hight
14 5/16
port
hight
13 3/16
width
2 3/4
length
18 total 14 till 90 degree bend then another 4 after that
also when the port bends the width changes to 1 3/4