Only 6.5" Subs will fit the mounting.

The depth is not the only factor. Also the diameter of the speaker magnet.
The stock speaker fit really tight, and they are not too big.

I'm sorry that i can't tell you exact measures. Best way will to put them out of the enclosure and measure them.

I would recommend to use bigger subs, because the 6.5" woofers are not really able to produce bass.

Take a look at this thread:
https://www.crossfireforum.org/forum...-location.html


Regards

Markus