The EMPA-3250 is a highly efficient 250W power amplifier that has balanced/unbalanced input and output. It has a built in temperature controlled fan for increase reliability and has the option of selecting the input sensitivity level (1V, 500mV and 100mV). The EMPA-3250 is built to be both functionally superior and physically robust and thus, very suitable for different configurations of public addressing system. Finally, the EMPA-3250 can be powered through the usual 240Vac or 24Vdc.