Used Mackie HM-400

Used Mackie HM-400 headphone amplifier in great condition, perfect for studios, rehearsal spaces, and podcast setups. This compact 1U rackmount unit delivers clean, powerful monitoring with 4 independent headphone outputs, each with its own level control, plus main input and auxiliary input for flexible cue mixes. Rugged Mackie build quality ensures reliable performance session after session, making it an easy upgrade for anyone who needs multiple headphone feeds without sacrificing clarity.