Univox SLS-1 is intended for small rooms with no or moderate metal attenuation. SLS-1 is substantially smaller and lighter than its predecessors. Their multiple class D stages makes them perfectly adapted to the requirements of modern phased array loop systems. With electronic transformers, efficient class D stage and silent fan free operation, they deliver unsurpassed high audio quality. The advanced and adaptive real time current and temperature protection makes SLS-series virtually indestructible with any load or short-circuit.