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Mackie HM-400 4-channel Headphone Amplifier

Rackmount 4-channel Headphone Amplifier with 12 Headphone Outputs, L/R Stereo Inputs, L/R Stereo Outputs, 4 Aux Inputs, 4 Stereo/2-channel Mode Switches, and 7-segment LED Metering
$199.99

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Mackie HM-400 4-channel Headphone Amplifier
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High-performance Headphone Amplification

Searching for an easy way to increase the monitoring capacity of your studio? Look no further than the Mackie HM-400. This 4-channel headphone amplifier boasts three outputs per channel for a total of 12 headphone outputs. Each channel contains an aux input, along with a balance control to mix your main and aux signals. Four independent aux inputs supply up to eight individual stereo mixes. You also get Stereo/2-channel Mode switches along with 7-segment LED meters on each channel. Premium analog circuitry ensures super-high headroom and a low noise floor, while a heavy-gauge steel chassis and long-wear potentiometers and switches provide extreme durability. The HM-400 delivers high-performance headphone amplification that's sure to become an invaluable asset in your studio.

Premium analog circuitry delivers top-notch sound

No matter what you're recording, the HM-400 will deliver studio-quality sound, and premium analog circuitry ensures maximum headroom and low noise. At Sweetwater, we're impressed by just how great this headphone amplifier sounds — especially at this price.

Built-Like-A-Tank design withstands day-to-day abuse

The HM-400 can endure a great deal of punishment, thanks to Mackie's Built-Like-A-Tank construction. The HM-400 features a heavy-gauge steel chassis, along with long-wear potentiometers and switches. This is one piece of studio gear that's clearly built to last.

Mackie HM-400 Features:

  • Rackmount 4-channel headphone amplifier
  • 3 outputs per channel for a total of 12 headphone outputs
  • Each channel contains an aux input and a balance control to mix your main and aux signals
  • L/R stereo inputs plus L/R stereo outputs
  • Stereo/2-channel Mode switches on each channel
  • 7-segment LED meters on each channel
  • Premium analog circuitry ensures super-high headroom and a low noise floor
  • Heavy-gauge steel chassis and long-wear potentiometers and switches provide extreme durability

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Tech Specs

  • Type: Headphone Amp
  • Input Channels: 4
  • Output Channels: 4 (3 outs per channel)
  • Analog Inputs: 2 x 1/4" (main L/R rear), 1 x 1/4" (main front), 2 x XLR (main L/R), 4 x 1/4" (aux in)
  • Analog Outputs: 2 x 1/4" (main L/R), 2 x XLR (main L/R)
  • Headphones: 12 x 1/4" (8 x rear, 4 x front)
  • Controls per Channel: Balance, Bass, Treble, Output
  • Form Factor: Rackmount
  • Power Supply: Standard IEC AC cable
  • Height: 1.8"
  • Width: 19"
  • Depth: 8.8"
  • Weight: 8 lbs.
  • Manufacturer Part Number: 2049178-00

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Customer Reviews

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Rated 4/5

Perfect

This is all I needed for my home studio, works great and looks great in my rack.
The only problem with this is the lights are too bright tone it down or add a dimmer switch, it's for real that bright.
Been dealing with Sweetwater for years! there one of the best out there in the land of music gear world. Sales people there are very helpful with any questions!
My guy there is Aaron Rom always great to deal with!
Music background: Guitar hobbyist for life!
Rated 5/5

Perfect!

I have purchased 3 of these units now. My original use was a travel rig - using it as an in - ear monitor for tracks and cues. It performs flawlessly and plenty of volume for my needs. I like the flexibility of the inputs and controls. The unit was well thought and out and it's built well. I bought the second two units to use in our church for in - ear monitors. Our space is rather small and quiet so eliminating extra volume from the stage was critical to me. This fit our budget and needs flawlessly. I highly recommend it!!
Music background: Church/ Worship
Rated 5/5

It was a surprisingly big improvement over my old unit.

Clear, clean, without the distortion of my old unit. It's a perfect solution of "pro enough" for most people's ears without being priced in the stratosphere as a boutique. Plenty of power too, even for my high-impedance headphones. After I heard the difference from my old unit, I wondered why I waited so long to get this.
Rated 5/5

Nice upgrade

Great piece of gear. It made a noticeable difference in the quality of the headphone sound.
Music background: Musician, studio owner
Rated 5/5

I Needed The Best and I Get it

The best thing i did was buy this one. Not only has help me in the main reason i bought which was with the headphones adjustments and looking for clearness, but also i have connected my studio monitors and speakers and now i can control the sound, level and reverbs through this Mackie excellency. I'm very happy with my decision and in the near future i would buy another one. You Know? when we use our brain, we get the best out of any device. Thanks Mackie and Sweetwater.
Music background: Award winning Singer-Songwriter, Musician, Award Nominated Sound Engineer and Music Producer
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