OMNITRONIC ELA-T50 is a 50 W RMS audio transformer for amplifiers or speakers without an integrated 100 V transformer. It converts low-impedance audio signals to 100 V public address signals and provides five selectable power taps: 6.25 W, 12.5 W, 25 W, 37.5 W, and 50 W RMS. The transformer has a frequency range of 30–15,000 Hz and supports 4, 8, and 16 ohm connections. Its dimensions are 9.3 × 5.7 × 5.6 cm and its weight is 0.84 kg.