High power line transformer for compression drivers. 30W line matching transformer for 25/70.7V speaker lines. This product features primary taps of 1.8, 3.7, 7.5, 15 and 30W for 70V lines and 1.89, 3.7, 7, and 15W for 25V lines. The T-20 features an 8 ohm secondary and frequency response of 60Hz - 20kHz.