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Mackie HM-800 Rack-Mountable, 8-Channel Headphone Amplifier

BH #MAHM800 • MFR #HM-800
1 review
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Mackie HM-800 Rack-Mountable, 8-Channel Headphone Amplifier
Key Features
  • Distribute Signal to 16 Headphones
  • Two Stereo Main Inputs via 1/4" Jacks
  • Two Stereo Main Outputs via 1/4" Jacks
  • Two 1/4" Headphone Outputs per Channel
The Mackie HM-800 is a rack-mountable, 8-channel headphone amplifier designed to provide versatile headphone amplification for artists, musicians, and engineers monitoring through headphones in live stage applications and home, project, commercial, and mobile-recording studios. It features two stereo main outputs via four 1/4" jacks and sixteen 1/4" TRS stereo headphone outputs—two per channel—fed by a customizable blend of inputs.

Two stereo main inputs via four 1/4" jacks can be combined with a per-channel 1/4" stereo aux input. Each channel offers stereo/mono mode switching, input selection, and output level adjustments. 7-segment LED meters display main input and per-channel output levels.

The HM-800 ships with an IEC power cable and occupies 1 RU in a standard 19" rack.

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Mackie HM-800 Overview

The Mackie HM-800 is a rack-mountable, 8-channel headphone amplifier designed to provide versatile headphone amplification for artists, musicians, and engineers monitoring through headphones in live stage applications and home, project, commercial, and mobile-recording studios. It features two stereo main outputs via four 1/4" jacks and sixteen 1/4" TRS stereo headphone outputs—two per channel—fed by a customizable blend of inputs.

Two stereo main inputs via four 1/4" jacks can be combined with a per-channel 1/4" stereo aux input. Each channel offers stereo/mono mode switching, input selection, and output level adjustments. 7-segment LED meters display main input and per-channel output levels.

The HM-800 ships with an IEC power cable and occupies 1 RU in a standard 19" rack.

Distribute signal to up to sixteen pairs of headphones
Occupies 1 RU
Two stereo main inputs via four 1/4" jacks
One 1/4" stereo aux input per channel
Two stereo main outputs via four 1/4" jacks
Two 1/4" stereo headphone outputs—one on the front panel and one on the rear—per channel fed by an output level control
Switches on each channel for stereo/mono operation input selection
7-segment LED metering for main input and each output channel
Heavy-gauge steel chassis for rugged durability
UPC: 663961054095

Mackie HM-800 Specs

Key Specs
Number of Headphone Channels
8-Channel
Headphone Output Power
Up to 550 mW
Audio I/O
1/4" (Headphone)
1/4" (I/O)
Power Requirements
AC Input
Form Factor
Rackmount
Number of Headphone Channels
8-Channel
Headphone Output Power
550 mW per Side into 47 Ohms (Max)
Display
9x Multi-Segment LED Meter
Connectivity
Analog Audio I/O
16x 1/4" TRS Unbalanced Headphone Output
4x 1/4" TRS Balanced Input (2 Stereo Pairs)
8x 1/4" TRS Unbalanced Stereo Aux Input
4x 1/4" TRS Balanced Output (2 Stereo Pairs)
Performance
Frequency Response
20 Hz to 20 kHz ±1 dB
Gain/Trim Range
Inputs:
-67 to +19 dBu
Maximum Input Level
Line Inputs:
+19 dBu
Aux Inputs:
+20 dBu
Maximum Output Level
Headphone Outputs:
+21 dBu
Impedance
Inputs:
40 Kilohms (Balanced)
20 Kilohms (Unbalanced)
Aux Inputs:
13 Kilohms (Unbalanced)
Headphone Outputs:
3 Ohms (Unbalanced)
THD+N
< 0.005% (at +4 dBu, 1 kHz, Unity Gain)
Noise
-70 dB
Power
Power Requirements
AC Input
AC Input Power
100 to 120 VAC, 50 / 60 Hz
220 to 240 VAC, 50 / 60 Hz
Physical
Rackmount Size
1 U
Dimensions
19 x 8.8 x 1.8" / 483 x 224 x 46 mm
Weight
8.0 lb / 3.6 kg
Packaging Info
Package Weight
10 lb
Box Dimensions (LxWxH)
20.8 x 10.7 x 4.1"

Mackie HM-800 Reviews

Really good Amplifier

By Herbert
Rated 5 out of 5
Date: 2021-08-04

Hardly recommending, I have 2 different brand name before not good

See any errors on this page?

Can I use daisy chain this, if I want to send 1 ...

Can I use daisy chain this, if I want to send 1 audio signal to 32 headphones?
Asked by: Rich
You would experience degradation of audio quality by linking these headphone amplifiers. I would suggest using the Rolls RA163 Distribution Amplifier, B&H # RORA163. Connect your mixing board headphone output to the Rolls RA163 with a Pro Co Sound 1/4" Phone Male to 2 1/4" Phone Female Y-Cable - 1,' B&H # PRYCPM2PF1 and two of the Hosa Technology Mono 1/4" Male to 3-Pin XLR Male Audio Cable - 2,' B&H # HOPMXM2. Then you can distribute that signal to two units of the Behringer Powerplay HA8000, using two of the Pearstone PM Series 1/4" TRS M to XLR F Professional Interconnect Cable - 1.5' (0.46 m), B&H # PEPMTRSXF1.5.
Answered by: Steven M
Date published: 2024-03-14

Can I use this to distribute one audio signal ...

Can I use this to distribute one audio signal from a mixer to 16 Headphones?
Asked by: Rich
Yes, you can use the Mackie HM--800 to distribute the audio signal from a mixer to up to sixteen pairs of headphones.
Answered by: Lisa S
Date published: 2024-03-14

Do the aux inputs accept mic level audio?

Do the aux inputs accept mic level audio?
Asked by: Joel
No. The aux inputs on the Mackie HM-800 Headphone Amplifier are intended for use with line level audio signal which is a much higher level than mic level signal.
Answered by: Lisa S
Date published: 2024-03-14

Can the Mackie HM-800 handle 8 independent mix ...

Can the Mackie HM-800 handle 8 independent mix inputs from an Allen & Heath Qu-5D mixer, one mix for each of the 8 headsets?
Asked by: Houssam
The Mackie HM-800 headphone amplifier can handle eight independent stereo mix inputs. Each headphone channel will have separate volume control.
Answered by: Daniel O
Date published: 2025-11-03
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