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Your cart is empty.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. The HM-400 features a main input with level control plus stereo outs, aux inputs and EQ per channel with 12 total headphone outputs.
Gabriel Valdés
Reviewed in Mexico on May 3, 2024
Muy práctico y además agrega un plus de sonido a los audífonos!! Bien gracias
Smithicus
Reviewed in Canada on September 23, 2023
What a difference! This is so much better than the smaller version, miles better.
David Champoux
Reviewed in Canada on April 19, 2023
Good quality overall.
Placeholder
Reviewed in India on May 23, 2021
best budget 4 channel headphone amp for studio, jam rooms theatre etc, even though it's a 4 channel.. actually there is 12 headphone out, 2 monitor out and many inputs.. at this price i wasn't expecting that much quality but after testing even on full volume there is almost no distortion in the audio, reliable and sturdy, as it is black colour you can also hide them easily and make your desk tidy... thanks mackie for an affordable HA... love it.
Rick Caron
Reviewed in Canada on December 7, 2021
The light of each meter are so bright, The rack is just under my monitor and I had to put a black taper over the meter led. Also I have some kind oh hum on channel 2. Very annoying! The behringer unit is way better than this one.
Awtry
Reviewed in the United States on January 17, 2020
Very good headphone amp clean and clear
Customer
Reviewed in the United States on July 1, 2019
I can't find the seller anymore. It was listed as in very good condition and that it "may have some cosmetic blemishes", which would be fine. But I was sold one with a broken channel. Seriously, the third channel just doesn't work. Can't believe amazon lets things like this slide. For the past few months i've thought I was at fault, and I could get it working by troubleshooting, but I took it to an electronics repair shop and he told me that yes, the preamp board is busted. The return window closed ages ago.
Nicholas Collard
Reviewed in the United States on November 24, 2019
This headphone amp is very functional in the system I have
kujava
Reviewed in the United States on June 29, 2018
Use for band as wired IEMs and also feeds wireless IEMs. I send the feed from the mixer's main or from the mixer's sub/aux into the stereo input and can pan accordingly for each individual output channel (up to 3 input channels for each output channel). The amp is very loud - great job Mackie!
J. Talmage Ball
Reviewed in the United States on May 27, 2018
Like everything Mackle makes, works great with Grado headphones
Arthur A. Scammacca
Reviewed in the United States on November 6, 2018
As expected from Mackie - low noise, great sound, great features and plenty loud.
Brian
Reviewed in the United States on October 28, 2018
I’ve been waiting for years to buy one of these.Now that it’s here I absolutely love it. Now everyone can grab a set of headphones and hear the production! I would definitely recommend this product to anyone wanting a professional headphone rackmount!Great product. Thanks for helping me live the dream!
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