Short product description:
Mackie HM-4 is a compact 4-channel headphone monitor mixer designed for personal monitoring and small live or studio setups. It features 10 kΩ input impedance, 47 Ω output impedance, 22 dB channel separation and a 6.3 mm headphone connector. DC powered with dimensions 109 × 58 × 21 mm, suitable for stage, rehearsal and recording monitoring.