Versatile accurate monitoring. The Mackie HM 400 will be a welcomed addition to your professional recording set up particularly excelling in live and studio scenarios. Monitor with ease and precision through the HM400s independent level controls on-board two band EQ stereo/dual mono selection and 7-segment LED meters. This enables you to create unique headphone mixes catering for everyones desires to enhance performance and recordings. The compact nature of the HM400 makes it ideal for installed applications within performance venues houses or worship recording studios and even practice spaces. Encased in a solid steel chassis Mackies Built-Like-A-Tank™ construction guarantees long lasting high quality performances to cope with the portable life of the touring musician and recording engineer making the HM-400 a steal for its price. Tailored mixes The Mackie HM-400 offers four independent input channels and a total of 12 headphone outputs making it the perfect addition for any professional musician or recording engineer wishing to expand their current set up. Whether youre on stage or in the studio solid headphone mixes are a necessity for inspiring musicians to achieve powerful performances. The flexibility and versatility of the Mackie HM-400 ensures that the performer has total control over their sound. Users will be able to apply an extremely musical two-band EQ to their headphone mix giving the ability to cut or boost bass and treble frequencies to taste. Each channel can be set to one of two modes: stereo or two-channel. The stereo setting ensures that the width and depth of the mix is maintained across all headphones whilst the two channel option sums the signal to dual mono allowing you to check phase coherency and ensuring consistent sound across all headphone types. High fidelity playback High quality analog circuitry promises detailed playback designed to provide the listener with sparkling highs and warm lows alongside clear 7-level LED meters allowing you to monitor audio accurately eliminating the possibility of clipping and distortion. Built to last Mackie take pride in the build quality of their equipment providing Built-Like-A-Tank™ construction and the HM-400 is no exception. The amplifier features a robust solid steel chassis designed to cope with the day to day hardships of the working professional. The construction philosophy is also reflected in the use of long wear potentiometers and switches providing you with years of trouble free use and high quality performance. The HM-400s 19″ 1U rack-mountable chassis enables the amplifier to be mounted in both studio and location rigs making it the ideal choice for live shows sessions podcasts as well as studio recordings. Features 12 total headphone outputs L/R Main stereo inputs plus L/R stereo outputs 7 segment LED metering per channel plus main 3 headphone outputs per channel Aux input on each channel with balance control to mix main and aux signal Mute and stereo/2-ch mode switches per channel Renowed Mackie Built-Like-A-Tank™ construction Specifications Frequency Response: 20hz-20khz. Noise: -66dB Distortion: (THD) +4 DbU 1kHz unity gain < 0.01 Maximum levels: Main Input: +15dBu balanced / unbalanced. Aux Input: +20-dBu unbalanced. Headphone: 550mW / Channel @ 47 Ω (+21dBu) CMRR (Main Input): > 42dB @ 1Khz Gain Range: (Main Input -66 to 18dBu Input Type: Female XLR Balanced. Female 1/4″ balanced – unbalanced Main Input Impedance: 20 KΩ balanced 10 kΩ unbalanced. Aux Input Impedance: 10 KΩ unbalanced. Output Type: Male XLR Balanced. Female 1/4″ Balanced – Unbalanced Headphone Output Impedance: 3 Ω unbalanced. Detachable Line Cord: 100 – 120V 50/60Hz 24W 220 -240V 50/60Hz 24W AC Connector: 3-pin IEC 250 VAC 10 A male Weight: 3.6Kg / 8.0lb Product Code: 2049178-03