MACKIE HM-800 - 8-Channel Rackmount Headphone Amplifier

MACKIE HM-800 – 8-Channel Rackmount Headphone Amplifier

The Mackie HM-800 is a professional 19" rackmount headphone amplifier with a 1U footprint, offering up to 10 independent mixes feeding a total of 16 headphone outputs. Ideal for recording studios, live environments, houses of worship, and rehearsal rooms, it combines rugged "Built-Like-A-Tank™" construction with high-fidelity analog circuitry that ensures low noise, high headroom, and a flat response from 20 Hz to 20 kHz. Each of the 8 channels features a level control, input selector (stereo/mono), and 7-segment LED metering, while the two main stereo inputs feature independent control and output pass-through for feeding external equipment.

Main features

• Channels: 8 independent channels with 2 headphone outputs each (16 outputs total).
• Main Inputs: 2 discrete stereo inputs (XLR/TRS) with individual level control and gateway outputs.
• Auxiliary Inputs: 1 auxiliary input per channel to create up to 8 personal mixes.
• Selection and Mode: Input Select and Stereo/Mono switches on each channel.
• Measurement: 7-segment LED indicators for each channel and for the main signal.
• Frequency response: 20 Hz – 20 kHz ±1 dB.
• Distortion (THD): < 0.005%.
• Noise: –70 dB residual noise level.
• Output Power: Up to 550 mW per channel into 47 Ω.
• Construction: 1U metal chassis, gray finish, wear resistant.

User benefits

• Simultaneous Monitoring: Allows up to 8 musicians or engineers to listen to custom mixes without interference.
• Studio Sound: High-quality analog circuitry with low noise and minimal distortion.
• Mixing Flexibility: Auxiliary and main inputs with dedicated controls for quick adjustments.
• Visual Control: Precise LED meters make it easy to adjust levels on-air or in the studio.
• Touring reliability: “Built-Like-A-Tank™” construction prepared for transport and intensive use.

Use cases

• Multi-track recording studios where each musician needs their own mix.
• Live stages for in-ear or stereo monitoring distribution.
• Churches and auditoriums requiring sound distribution for interpreters.
• Rehearsal rooms where several users wish to listen to different guide tracks.

Frequently Asked Questions

• How many mixes can I create? Up to 10 independent mixes, combining main and auxiliary inputs.
• What is the rack size? 1U in a 19″ rack.
• Do I need adapters? It features standard XLR and TRS inputs; no additional adapters are required.
• How is it powered? Comes with an IEC cable for 100–240 V, 50/60 Hz.

Description for projects

Mackie HM-800 Headphone Amplifier: 8 channels with 16 outputs, 2 main stereo inputs, 8 auxiliary inputs, LED meters, 20 Hz–20 kHz response, THD < 0.005%, 1U rack chassis.