The Protech Audio Models 98102, 98103, 98104, 98105, and 98106 Quicktrack Audio Transformers are high quality audio transformers packaged to facilitate quick installation. The unique transformer-direct-tobarrier construction eliminates one of the most common problems encountered while using impedance matching audio transformers. This design approach saves substantial time and money, and reduces errors in all types of installations. Each termination point in the transformer is brought out to a separate barrier screw. The barrier screw is assembled with a hold down plate. In order to terminate a wire, the technician simply strips the wire, places the stripped end under the corresponding hold down plate, and tightens the screw. Each barrier screw is clearly marked with a number. This number corresponds to the transformer schematic termination point. The Quicktrack mounting extrusion simplifies the actual mounting of the assembly, into the equipment rack. One machine screw set , is all that is required to mount the assembly. The printed circuit board with the barrier terminal and audio transformer, slips out of the extrusion to allow easy access to the mounting hole. Extrusions are available in 19" lengths.