Mackie Hm-4 4-Way Headphone Amplifier Headphone Amps
Only 5 left !
Mackie Hm-4 4-Way Headphone Amplifier Headphone Amps
Only 5 left !

Mackie HM-4 4-Way Headphone Amplifier


  • $54.99

Price Match Only 5 left!

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.


  • 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


  • 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"

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