Used Mackie HM400 Headphone Amp

Used Mackie HM400 Headphone Amplifier in great condition—an easy, reliable way to power multiple listeners in the studio, stage, or podcast setup. This compact 4-channel headphone amp features one stereo input feeding four independent headphone outputs, each with its own level control for personalized monitoring. Built for clean, low-noise performance with plenty of volume, it’s a straightforward solution for band rehearsals, tracking sessions, and listening stations.