The LT70 General purpose transformer provides economical matching of loudspeakers for most distributed sound applications. The insertion loss does not exceed 1.5dB and frequency response is +1.5dB from 100 Hz to 10 kHz. Primary taps are .5, 1, 2 and 5 watts. Secondary impedance is 8 ohms. Model LT-70 is designed for use with 70.7-volt lines