PB48 48-Way Patch Bay with 48 Front and Rear Points 1UWell, it not very glamourous, but everybody needs a patchbay. And as for the PB 48, it is a patchbay that just works, all the time, every time. It comes in two flavours: half normalled or de normalled, with 48 1 4" points on the front panel, connected to 48 1 4" points on the rear. The PB 48 is a rugged, noise free, versatile patchbay designed to serve all your patchbay needs, from providing clear and easy access to your mixer and other studio gear,