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.
Mackie HM-800 Specs
Number of Channels | 8 |
Input Connections | 4 x 1/4" TRS balanced (two stereo pairs, also accepts 1/4" TS unbalanced) 8 x 1/4" TRS stereo unbalanced for aux inputs |
Output Connectors | 4 x 1/4" TRS balanced (two stereo pairs, also accepts 1/4" TS unbalanced) 16 x 1/4" TRS stereo unbalanced headphone outputs |
Maximum Input Level | Main Input: +19 dBu Aux Input: +20 dBu |
Maximum Output Level | Headphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu) |
Input Impedance | Main Input: 40 kOhms balanced, 20 kOhms unbalanced Aux Input: 13 kOhms unbalanced |
Output Impedance | Headphone Outputs: 3 Ohms unbalanced |
Gain Range | Main Input: -67 to +19 dBu |
Function Controls | Power on/off Main level knobs In 1/2 switches per channel Stereo/Mono switches per channel Output knob per channel |
Frequency Response | 20 Hz to 20 kHz (±1 dB) |
THD | |
Noise | -70 dB |
CMRR | Main Input: >52 dB at 1 kHz |
Display | 1 x input level meter 8 x output level meters |
Power Requirement | 100 to 120 VAC, 50/60 Hz, 24 W 220 to 240 VAC, 50/60 Hz, 24 W |
Power Connector | 1 x 3-pin IEC male, 250 VAC, 10 A |
Construction Material | Heavy-gauge steel chassis |
Dimensions (H x W x D) | 1.8 x 19.0 x 8.8" / 46 x 483 x 224 mm |
Weight | 8 lb / 3.6 kg |
Package Weight | 10.7 lb |
Box Dimensions (LxWxH) | 20.8 x 10.7 x 4.1" |