Mackie HM-400 - User Manual

OWNER’S MANUAL
™
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Summary

Important Safety Instructions

Getting Started

Initial Setup and Connection

Step-by-step guide for connecting and powering up the headphone amplifier.

Hookup Diagrams

HM-400 Typical Setup

Illustrates how to connect the HM-400 to a mixer and headphones.

HM-800 Typical Setup

Illustrates how to connect the HM-800 to a mixer, headphones, and other sources.

Rear Panel Features

Power Connector and Fuse

Details on the IEC power input and fuse replacement for the amplifier.

Voltage Selector Switch

Information on setting the correct voltage for international use.

Main Input Jacks

Explains XLR and 1/4" connectors for audio signal input.

Main Output Jacks

Details XLR and 1/4" connectors for audio signal output.

Front Panel Features

Power Switch and LED

Service Information

Troubleshooting

Steps to diagnose and resolve common operational issues like no power, no sound, or poor sound.

Repair Services

Information on obtaining warranty and non-warranty repair services.

Technical Specifications

Audio Performance Specifications

Input;Output Connectivity

Limited Warranty

Customer Support and Contact Information

Mackie HM-400 Specifications

General

Power source	AC
AC input voltage	100 - 120 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	24 W
Product color	Black
LED indicators	Power, Status, Switch
Gain	18 dB
Frequency range	20 - 20000 Hz
Output impedance	47 Ω
Peak power per channel	- W
Signal-to-Noise Ratio (SNR)	-66 dB
Total Harmonic Distortion (THD)	0.01 %
Audio (L/R) in	12
Headphone connectivity	6.3mm

Weight and Dimensions

Depth	224 mm
Width	483 mm
Height	46 mm
Weight	3600 g