TOA SC-630TU 30W Paging Horn Speaker With 70.7V Transformer, UL Rated | Full Compass Systems
Amazon.com: TOA SC-630TU Outdoor 30W Paging Horn Speaker with Built-in Transformer, White, High Sensitivity Up to 113dB (1W/1m), Input Impedance Selector (25V and 70V) with Rotary Switch