Used Mackie HM4 Battery Powered Amp

Used Mackie HM4 4-Channel Headphone Amplifier in great condition. This compact, battery-powered unit delivers high-quality sound with four independent 1/4" stereo headphone outputs, each with its own volume control. Ideal for studio or portable setups, it features a single 1/4" stereo input and a rugged metal chassis for durability. Whether for personal monitoring or collaborative sessions, the HM4 offers reliable performance with clear, powerful audio. Powered by standard batteries (not included).