OMNITRONIC ELA-T75 is a passive 100 V audio transformer for amplifiers or speakers without an integrated 100 V transformer. It converts low-impedance audio signals to 100 V signals and provides five selectable power taps at 9.375 W, 18.75 W, 37.5 W, 56.25 W, and 75 W RMS. The transformer supports 4, 8, and 16 ohm impedance connections, has a frequency range of 30–15,000 Hz, and measures 9.3 × 6 × 6 cm with a weight of 0.91 kg.