The HT47 is a Industry standard, high quality transformer with audio grade laminations. The unit offers low insertion loss (not to exceed 1.0dB) and full-range frequency response (+1dB from 60Hz - 12kHz).
Primary taps are .5, 1, 2 and 4 watts. Secondary impedance is 8 ohms. Model HT-47 is designed for use with 70.7-volt lines.