Discover the power of sound with the Adastra RM244V Mixer Amplifier, a top-tier solution for your audio needs. This device features a built-in USB/SD player, Bluetooth, and FM tuner for versatile media playback. It's fully compatible with the CS4 call station for seamless integration. Each of the four zones has its own volume control, ensuring tailored sound distribution. The unit offers switchable +20V phantom power and a send/return loop for easy connection to other audio equipment. Additionally, it includes 19" rack-mount ears for easy installation and features Bluetooth with a customizable ID. Elevate your audio setup with this all-in-one amplifier – perfect for any setting requiring clear, controlled sound. Make it yours today!