The Mackie HM-4 is a 4-way headphones amplifier designed to provide simple and effective headphones amplification for artists, musicians, and engineers monitoring through headphones in home, project, commercial, and mobile-recording studios. Its single 1/4″ TRS stereo input and four 1/4″ TRS stereo outputs allow you to distribute a stereo source to up to four pairs of headphones.
• Share a single stereo source with up to 4 headphone pairs
• 1 x 6.3 mm jack stereo input and 4x 6.3 mm jack stereo outputs •with individual volume controls
• Dimensions: 51 x 109 x 58 mm
• Weight: 200 g
• Includes 12V power supply