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 HM-400 4-Channel Headphone Amplifier offers an incredible amount of versatility and excellent sound quality in a single rack space. Perfect for professional applications including studios, Houses of Worship, practice spaces, and more. It also features a main input with level control plus stereo outs, aux inputs and EQ per channel with 12 total headphone outputs.
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
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Sep 25, 2026 04:53
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MACKIE HM-400 - 4-Channel Headphone Amplifier (3 outputs per channel)
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MACKIE HM-400 - 4-Channel Headphone Amplifier (3 outputs per channel)
$289.99
MACKIE HM-400 - 4-Channel Headphone Amplifier (3 outputs per channel)