Thanks for all of your responses. Since my last posting I have installed a metal back plate to the Porter Port
and went futher and applied small srrips of Deflex Panel ing to the back of the back plate and a little to the front of the plate to cut down on damping and the sopund became even more refined.
and went futher and applied small srrips of Deflex Panel ing to the back of the back plate and a little to the front of the plate to cut down on damping and the sopund became even more refined.