The speakers are built entirely out of MDF. The front baffle is
made of two layers and the rest of a single layer. The
construction is very rigid and does not vibrate, even when
There is a bass vent in the back constructed using two MDF boards which also serve as additional bracing for the cabinet.
The compartment behind the mid and high range drivers is used to hold the filters. The back wall is removable for easy access to the filters, in case of upgrades. Speaker terminals are located at the bottom of the removable wall.