But, and it's a very big butt...it appears he measured on the back of the speaker cabinet. (the input terminals) , based on his statement he might take the woofer out and remeasure. (I had a suspicion he was doing this)
He can measure till the cows show up...he needs to have that woofer reconed.
This comes down to trying to figure out what the heck is wrong without seeing things for ourselves, and trying to make sense of what someone elses description is all about. (about 90 percent of what we do here
)