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. ach of the four channels includes 2‑band EQ (bass/treble), a balance or input mix control, output trim, and switches for left/right mute and stereo/mono mode. Integrated 7‑segment LED meters display the main input and per-channel output levels for precise monitoring.

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