The SR-S4SWP is a two-way line array speaker ideal for short distance sound transmission andconfigures a line array by arranging speaker elements vertically close to each other.It satisfies the water protection requirements set down in the IPX4 Standard.It can be converted into the bi-amplifier drive system by changing the internal connection.It can be used for high-impedance applications with the installation of the optional MT-S0601Matching transformer.