Electro-Voice 804-100 is a versatile monaural amplifier with an impressive 100-watt sine wave output. It's a great choice for public address systems and can be paired with a microphone, phono cartridge, tuner, or auxiliary equipment.The device includes speaker outputs for 16 ohms, 25 volts, and 70 volts, allowing for effortless matching with external speakers. Its well-thought-out design includes a microphone precedence circuit that gives priority to microphone announcements, ensuring clarity in paging applications.