

<h2>High-performance Headphone Amplification</h2>
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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.
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<h3>Premium analog circuitry delivers top-notch sound</h3>
No matter what you're recording, the HM-400 will deliver studio-quality sound, and premium analog circuitry ensures maximum headroom and low noise. Here, we're impressed by just how great this headphone amplifier sounds — especially at this price.
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<h3>Built-Like-A-Tank design withstands day-to-day abuse</h3>
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.
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<h2>Mackie HM-400 Features:</h2>
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<li>Rackmount 4-channel headphone amplifier</li>
<li>3 outputs per channel for a total of 12 headphone outputs</li>
<li>Each channel contains an aux input and a balance control to mix your main and aux signals</li>
<li>L/R stereo inputs plus L/R stereo outputs</li>
<li>Stereo/2-channel Mode switches on each channel</li>
<li>7-segment LED meters on each channel</li>
<li>Premium analog circuitry ensures super-high headroom and a low noise floor</li>
<li>Heavy-gauge steel chassis and long-wear potentiometers and switches provide extreme durability</li>
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<h2>Tech Specs</h2>
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<li class="table__row"><strong class="table__header">Type:</strong><span class="table__cell">Headphone Amp</span></li>
<li class="table__row"><strong class="table__header">Input Channels:</strong><span class="table__cell">4</span></li>
<li class="table__row"><strong class="table__header">Output Channels:</strong><span class="table__cell">4 (3 outs per channel)</span></li>
<li class="table__row"><strong class="table__header">Analog Inputs:</strong><span class="table__cell">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)</span></li>
<li class="table__row"><strong class="table__header">Analog Outputs:</strong><span class="table__cell">2 x 1/4" (main L/R), 2 x XLR (main L/R)</span></li>
<li class="table__row"><strong class="table__header">Headphones:</strong><span class="table__cell">12 x 1/4" (8 x rear, 4 x front)</span></li>
<li class="table__row"><strong class="table__header">Controls per Channel:</strong><span class="table__cell">Balance, Bass, Treble, Output</span></li>
<li class="table__row"><strong class="table__header">Form Factor:</strong><span class="table__cell">Rackmount</span></li>
<li class="table__row"><strong class="table__header">Power Supply:</strong><span class="table__cell">Standard IEC AC cable</span></li>
<li class="table__row"><strong class="table__header">Height:</strong><span class="table__cell">1.8"</span></li>
<li class="table__row"><strong class="table__header">Width:</strong><span class="table__cell">19"</span></li>
<li class="table__row"><strong class="table__header">Depth:</strong><span class="table__cell">8.8"</span></li>
<li class="table__row"><strong class="table__header">Weight:</strong><span class="table__cell">8 lbs.</span></li>
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Mackie HM-400 4-Channel Headphone Amplifier — premium professional audio gear engineered for performers, DJs, and audio professionals who demand exceptional sound, reliability and versatility. With advanced DSP, a high-output Class-D amplifier and modern connectivity, it delivers powerful, clear audio for any live sound, studio or event application.
| Brand | Mackie |
| Category | Headphones and Earphones |
| SKU | EE-18283 |
| Availability | In Stock |
| Warranty | Official Brand Warranty |
| Shipping | Pan-India, 2–4 days |
Absolutely. This unit is engineered for live performances, events, DJ setups and installations — delivering powerful, clear, road-ready audio for venues of every size.
It offers professional connectivity including combo XLR/TRS inputs and an XLR pass-thru, so you can chain multiple units and connect mixers, mics and instruments with ease.
Yes. Every product ships with the official manufacturer warranty plus genuine-product assurance from Electronic Emporium, an authorized dealer.
Orders are usually delivered within 2–4 business days across India. Delivery timelines may vary slightly based on your location and product availability.
We offer a 7-day easy return on unopened products. Just reach out to our support team and we will guide you through a hassle-free return.
Get advice from our audio experts for the right gear.
Talk to ExpertUsually delivered within 2-4 business days across India.
Check Delivery7-day easy return on unopened products.
View Return Policy1 Year JBL Official Warranty from date of purchase.
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