MIRACLE is into constructing of complete Range of Laminated Transformers as well as Toroidal Transformers. MIRACLE offers Audio Line Matching Transformers available with Dual Outputs: 4 & 8 Ohms, Maximum Ambient, Temperature: 40 deg C, Frequency Response: 40Hz to 20,000Hz [-2dB] and Connections: 150 +/- 10mm multi stranded PVC wire. Stripped and Tinned. The purpose of this transformer is to match the Impedance of the loudspeaker or a number of loudspeakers to the optimum load of the tube or transistor.