Perfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution.

The 19" rackmount model, the HM-400, delivers flexible, robust headphone distribution for studios, practice spaces and more.

Mackie HM-400 Features

• L/R Main stereo inputs plus L/R stereo outputs
• 7-segment LED metering per channel plus Main
• 3 headphone outputs per channel
• Aux input on each channel with balance control to mix main and aux signal
• Mute and stereo / 2-ch mode switches per channel
• 12 total headphone outputs
• Built-Like-A-Tank™ construction
  
  Frequency Response20Hz - 20,000Hz, ±1 dB
• Noise-66 dB
• Distortion (THD)<0.01% (+4 dBu, 1kHz, unity gain)
• Max. Levels
• • Main Input: +15 dBu balanced/unbalanced
  • Aux Input: +20 dBu unbalanced
  • Headphone Output: 550 mW/channel @ 47Ω (+21 dBu)
• CMRR (main input)>42 dB @ 1kHz
• Gain Range (main input)-66 to 18 dBu
• Input / Output
• • Input Type: female XLR balanced, female 1/4" unbalanced
  • Main Input Impedance: 20kΩ balanced, 10kΩ unbalanced
  • Aux Input Impedance: 10kΩ unbalanced
  • Output Type: male XLR balanced, female 1/4" balanced-unbalanced
  • Headphone Output Impedance: 3 Ω unbalanced
• Power Requirements
• • Detachable Line Cord
  • • ~100-120V, 50/60Hz, 24W
    • ~220-240V, 50/60Hz, 24W
  • AC Connector: 3-pin IEC 250 VAC, 10 A male
• Display LEDs
• • Front power on/off
  • Front input level meter
  • Front output level meters
  • L/R mute switches
  • St. / 2-Ch switches
• Dimensions (HxWxD)1.8" x 19" x 8.8"
• Weight8 pounds