Mackie HM-400

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

• 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.