Mackie HM-4 4-Way Headphone Amplifier
The Mackie HM-4 is a 4-way headphone amplifier designed to provide simple and effective headphone 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.
Each output is controlled via a dedicated level knob, allowing varied listening volumes for each person. The compact heavy-gauge steel chassis offers rugged durability and a convenient power status indicator on its front panel. Use the included 12 VDC power supply to power the HM-4.
Features:
Distribute a stereo input signal to up to four pairs of headphones
Ideal for musicians in home and studio recording sessions
One unbalanced 1/4" TRS stereo input
Four unbalanced 1/4" TRS stereo headphone outputs
Dedicated per-output level control allows each person to set a different listening volume
Front-panel power status indicator
Heavy-gauge steel chassis for long-lasting durability in the studio or on the road
Includes 12 VDC power supply
Specifications:
Number of Channels: 4
Input Connections: 1 x 1/4" TRS stereo (unbalanced)
Output Connectors: 4 x 1/4" TRS stereo (unbalanced)
Input Impedance: 10 kOhms
Output Impedance: 47 Ohms
Maximum Output Level: +22 dB
Function Controls: 4 x volume controls
Frequency Response: Not specified by manufacturer
Power Requirement: 12 VDC power supply
Current Draw: <220 mA maximum
Construction Material: Heavy-gauge steel chassis
Package Weight: 1.0 lb
Box Dimensions (LxWxH): 6.9 x 5.8 x 2.9"
