CONNECTIONS A Figure 2 The CA-525T, CA-650T, CA-800T and CA-800TSW include a multi-tap transformer for 70 or 100 volt installations. There is also a bypass position that allows normal 8 ohm operation for installations that do not require a transformer. The switch is on the back of the speaker and can be set using a small flat head screwdriver. Make the appropriate tap selection as indicated below: CA-525T (Transformer Power Rating: 30W) 70V: 30W, 15W, 7.5W, 3.7W, 1.7W 100V: 30W, 15W, 7.5W, 3.