Introducing the HA243, a powerful headphone amplifier designed to enhance your audio experience. With four 1/4" and 1/8" (3.5mm) headphone outputs, this amplifier allows multiple users to enjoy superior sound quality simultaneously. Enjoy the convenience of an A-B switch for each channel, enabling you to effortlessly switch between the A and B inputs, ensuring seamless monitoring at your fingertips! Elevate your headphone listening to a whole new level with the HA243.