DBX PB-48 patchbay features 48 balanced or unbalanced 1/4 inch jack patchpoints. DBX PB-48 has user-adjustable board assemblies that can be configured for Half-Normalled or De-Normalled patchbay operation without soldering or cutting wires. PB-48 patchbay is a rugged, noise-free, 1U rackspace patchbay designed to serve all your patchbay needs, from providing clear and easy access to your mixer and other studio gear, to reducing the wear and tear on their jacks.