![Image](http://www.lavintagegear.com/picts/Cabs/kw2x126.jpg)
![Image](https://cdn.shopify.com/s/files/1/1831/9191/products/212_SC212_Cab_-_rear__open_-_BY5-1P6A0260_C1600_1600x1600.jpg?v=1514346638)
the first picture is more traditional approach to give load to the baffle - the center block which is connected / contacted from the baffle to the back panel.
the second picture is Fryette's V-brace which gives more rigidity to the baffle.
i think they are the same in the perceptive that they strengthen the baffle, thus they raise up the overall frequency of the cab.
the difference is... the 1st makes the back panel to move in the same direction of the baffle, but the 2nd is not.
is "making the back panel to move in the same direction of the baffle" important ??
some ppl say it reduced the phase cancellation by synchronizing the movement between the baffle and the back panel.
but some cabinets do not screw the center block to the back panel, thus the baffle & the back panel do not move in the same direction.
(when the air pressure goes up, the baffle will move forward and the back panel backward because the center block is not fixed on the back panel)
want to hear your experience or imagination.