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{"id":4611726147630,"title":"Mackie HM-400 4-channel Headphone Amplifier","handle":"mackie-hm-400-4-channel-headphone-amplifier","description":"\u003ch1 class=\"prod-title\"\u003eHM \u003cspan class=\"series\"\u003eSeries\u003c\/span\u003e Headphone Amplifiers\u003c\/h1\u003e\n\u003ch2 class=\"intro\"\u003e\n\u003cspan class=\"large outline\"\u003eExpand\u003c\/span\u003e\u003cbr\u003eYour Versatility\u003c\/h2\u003e\n\u003cp\u003ePerfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution.\u003c\/p\u003e\n\u003ch3 class=\"sub green\"\u003eFlexible\u003c\/h3\u003e\n\u003ch2\u003eHeadphone amplification\u003c\/h2\u003e\n\u003cp\u003eWhether you need to expand your home studio headphone monitoring capability or add robust cue mix distribution, the affordable HM Series offers the sound quality, reliability, and flexibility you need to expand your setup.\u003c\/p\u003e\n\u003cp\u003eThe ultra-compact HM-4 offers a simple yet effective way to split a single stereo signal out into four pairs of headphones. Perfect for quickly splitting a phones mix in the studio or even crowding around a tablet to watch a movie at home.\u003c\/p\u003e\n\u003cp\u003eThe two 19\" rackmount models, the HM-400 and HM-800, deliver flexible, robust headphone distribution for studios, practice spaces and more.\u003c\/p\u003e\n\u003ch2\u003eFeatures​\u003c\/h2\u003e\n\u003cp\u003eGreat-sounding, reliable headphone amplification\u003c\/p\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003esuperior\u003c\/h5\u003e\n\u003ch4\u003eExcellent Sound Quality\u003c\/h4\u003e\n\u003cp\u003ePremium analog circuitry and design delivers an ultra-low noise floor and high headroom. \u003c\/p\u003e\n\u003cdiv class=\"grammarly-disable-indicator\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"grammarly-disable-indicator\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003eChoice\u003c\/h5\u003e\n\u003ch4\u003eUltra-Flexible\u003c\/h4\u003e\n\u003cp\u003eFrom a simple yet effective way to split a single stereo signal out to four pairs of headphones to robust headphone distribution, the HM Series offers a wide range of options to suit your needs. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003erugged\u003c\/h5\u003e\n\u003ch4\u003eBuilt-Like-A-Tank™\u003c\/h4\u003e\n\u003cp\u003eWith a heavy-gauge steel chassis, long wear potentiometers and switches\u003c\/p\u003e\n\u003cdiv class=\"title_wJnRisuaiX-cL7WCvemYN\"\u003e\n\u003ch2 data-selenium=\"overviewProductTitle\" class=\"title1_17KKS47kFEQb7ynVBsRb_5 reset_gKJdXkYBaMDV-W3ignvsP primary_ELb2ysditdCtk24iMBTUs\"\u003eMackie HM-400 Overview\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"overviewContent_29A9kOo2S5ZcuDmfNWh5OS\"\u003e\n\u003carticle class=\"content_sF4U0te87jYBdVZ2QLY5G\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\" data-selenium=\"overviewLongDescription\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\n\u003cp\u003eThe \u003cb\u003eMackie HM-400\u003c\/b\u003e is a rack-mountable, 4-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 a stereo main output via XLR and 1\/4\" jacks and twelve 1\/4\" TRS stereo headphone outputs—three per channel—fed by a customizable blend of inputs.\u003c\/p\u003e\n\u003cp\u003eOne stereo main input via XLR and 1\/4\" jacks can be mixed with a per-channel 1\/4\" stereo aux input. Each channel offers 2-band EQ for quick tone shaping, stereo balance or main\/aux input mix control, and output level adjustments. Also on each channel are switches for muting left and\/or right signals and operating in stereo or mono. 7-segment LED meters display main input and per-channel output levels.\u003c\/p\u003e\n\u003cp\u003eThe HM-400 ships with an IEC power cable and occupies 1 RU in a standard 19\" rack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eDistribute signal to up to twelve pairs of headphones\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOccupies 1 RU\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne stereo main input via XLR or 1\/4\" jacks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne 1\/4\" stereo aux input per channel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne stereo main output via XLR or 1\/4\" jacks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eThree 1\/4\" headphone outputs—one on the front panel and two on the rear—per channel fed by an output level control\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e2-band EQ per channel for quick treble and bass adjustments\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003ePer-channel Balance knob allows control of left\/right level balance or aux\/main input mix\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eSwitches on each channel for L\/R mute and St\/2-Ch (stereo\/mono) mode\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e7-segment LED metering for input and each output channel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eHeavy-gauge steel chassis for rugged durability\u003c\/div\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\n\u003cdiv class=\"title_1tNQ83iPOOgJ6m5fVkxmSw\"\u003e\n\u003ch2 data-selenium=\"specsItemTitle\" class=\"title1_17KKS47kFEQb7ynVBsRb_5 reset_gKJdXkYBaMDV-W3ignvsP primary_ELb2ysditdCtk24iMBTUs\"\u003eMackie HM-400 Specs\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group_K7YrQottgVsRZ4B6zAaGG\"\u003e\n\u003ctable class=\"table_o418fscimQZEg1oshu4aX\" data-selenium=\"specsItemGroupTable\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eInput Connections\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e2 x XLR 3-pin balanced (one stereo pair)\u003cbr\u003e 2 x 1\/4\" TRS balanced (one stereo pair, also accepts 1\/4\" TS unbalanced)\u003cbr\u003e 1 x 1\/4\" TRS stereo unbalanced for main input\u003cbr\u003e 4 x 1\/4\" TRS stereo unbalanced for aux inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eOutput Connectors\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e2 x XLR 3-pin balanced (one stereo pair)\u003cbr\u003e 2 x 1\/4\" TRS balanced (one stereo pair, also accepts 1\/4\" TS unbalanced)\u003cbr\u003e 12 x 1\/4\" TRS stereo unbalanced headphone outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eMaximum Input Level\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: +15 dBu\u003cbr\u003e Aux Input: +20 dBu\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eMaximum Output Level\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeadphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: 20 kOhms balanced, 10 kOhms unbalanced\u003cbr\u003e Aux Input: 10 kOhms unbalanced\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeadphone Outputs: 3 Ohms unbalanced\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eGain Range\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: -66 to +18 dBu\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eFunction Controls\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003ePower on\/off\u003cbr\u003e Main level knob\u003cbr\u003e L\/R mute switches per channel\u003cbr\u003e Stereo\/2-Ch switches per channel\u003cbr\u003e 2-band EQ per channel\u003cbr\u003e Balance knob per channel\u003cbr\u003e Output knob per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e20 Hz to 20 kHz (±1 dB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eTHD\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eNoise\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e-66 dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eCMRR\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: \u0026gt;42 dB at 1 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eDisplay\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1 x input level meter\u003cbr\u003e 4 x output level meters\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePower Requirement\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e100 to 120 VAC, 50\/60 Hz, 24 W\u003cbr\u003e 220 to 240 VAC, 50\/60 Hz, 24 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePower Connector\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1 x 3-pin IEC male, 250 VAC, 10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eConstruction Material\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeavy-gauge steel chassis\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1.8 x 19.0 x 8.8\" \/ 46 x 483 x 224 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e8 lb \/ 3.6 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group_K7YrQottgVsRZ4B6zAaGG\"\u003e\n\u003cdiv class=\"name_3mapjiENorVzh8SvFyXVPc\" data-selenium=\"specsItemGroupName\"\u003ePackaging Info\u003c\/div\u003e\n\u003ctable class=\"table_o418fscimQZEg1oshu4aX\" data-selenium=\"specsItemGroupTable\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL \" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePackage Weight\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v \" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e10.5 lb\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eBox Dimensions (LxWxH)\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e20.8 x 10.6 x 4.1\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2020-07-13T16:52:43+02:00","created_at":"2020-07-13T16:52:42+02:00","vendor":"Mackie","type":"Headphone Amplifiers \u0026 Distribution","tags":["headphone Accessories","Headphone Amplifiers","Headphone Amplifiers \u0026 Distribution","Mackie","shop by category_headphone Accessories","Shop by category_Headphone Amplifiers \u0026 Distribution","Shop by category_Studio Monitors","Studio Monitors"],"price":17999,"price_min":17999,"price_max":17999,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32476579397678,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Mackie HM-400 4-channel Headphone Amplifier","public_title":null,"options":["Default Title"],"price":17999,"weight":0,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":""}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516838635_1384523.jpg?v=1594652064","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928881.jpg?v=1594652074","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928882.jpg?v=1594652089"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516838635_1384523.jpg?v=1594652064","options":["Title"],"media":[{"alt":null,"id":7005431267374,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516838635_1384523.jpg?v=1594652064"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516838635_1384523.jpg?v=1594652064","width":500},{"alt":null,"id":7005432184878,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928881.jpg?v=1594652074"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928881.jpg?v=1594652074","width":500},{"alt":null,"id":7005432840238,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928882.jpg?v=1594652089"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/1516837827_IMG_928882.jpg?v=1594652089","width":500}],"content":"\u003ch1 class=\"prod-title\"\u003eHM \u003cspan class=\"series\"\u003eSeries\u003c\/span\u003e Headphone Amplifiers\u003c\/h1\u003e\n\u003ch2 class=\"intro\"\u003e\n\u003cspan class=\"large outline\"\u003eExpand\u003c\/span\u003e\u003cbr\u003eYour Versatility\u003c\/h2\u003e\n\u003cp\u003ePerfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution.\u003c\/p\u003e\n\u003ch3 class=\"sub green\"\u003eFlexible\u003c\/h3\u003e\n\u003ch2\u003eHeadphone amplification\u003c\/h2\u003e\n\u003cp\u003eWhether you need to expand your home studio headphone monitoring capability or add robust cue mix distribution, the affordable HM Series offers the sound quality, reliability, and flexibility you need to expand your setup.\u003c\/p\u003e\n\u003cp\u003eThe ultra-compact HM-4 offers a simple yet effective way to split a single stereo signal out into four pairs of headphones. Perfect for quickly splitting a phones mix in the studio or even crowding around a tablet to watch a movie at home.\u003c\/p\u003e\n\u003cp\u003eThe two 19\" rackmount models, the HM-400 and HM-800, deliver flexible, robust headphone distribution for studios, practice spaces and more.\u003c\/p\u003e\n\u003ch2\u003eFeatures​\u003c\/h2\u003e\n\u003cp\u003eGreat-sounding, reliable headphone amplification\u003c\/p\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003esuperior\u003c\/h5\u003e\n\u003ch4\u003eExcellent Sound Quality\u003c\/h4\u003e\n\u003cp\u003ePremium analog circuitry and design delivers an ultra-low noise floor and high headroom. \u003c\/p\u003e\n\u003cdiv class=\"grammarly-disable-indicator\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"grammarly-disable-indicator\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003eChoice\u003c\/h5\u003e\n\u003ch4\u003eUltra-Flexible\u003c\/h4\u003e\n\u003cp\u003eFrom a simple yet effective way to split a single stereo signal out to four pairs of headphones to robust headphone distribution, the HM Series offers a wide range of options to suit your needs. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat-item\"\u003e\n\u003cdiv class=\"feat-img\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"feat-cont\"\u003e\n\u003ch5 class=\"grey\"\u003erugged\u003c\/h5\u003e\n\u003ch4\u003eBuilt-Like-A-Tank™\u003c\/h4\u003e\n\u003cp\u003eWith a heavy-gauge steel chassis, long wear potentiometers and switches\u003c\/p\u003e\n\u003cdiv class=\"title_wJnRisuaiX-cL7WCvemYN\"\u003e\n\u003ch2 data-selenium=\"overviewProductTitle\" class=\"title1_17KKS47kFEQb7ynVBsRb_5 reset_gKJdXkYBaMDV-W3ignvsP primary_ELb2ysditdCtk24iMBTUs\"\u003eMackie HM-400 Overview\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"overviewContent_29A9kOo2S5ZcuDmfNWh5OS\"\u003e\n\u003carticle class=\"content_sF4U0te87jYBdVZ2QLY5G\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\" data-selenium=\"overviewLongDescription\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\n\u003cp\u003eThe \u003cb\u003eMackie HM-400\u003c\/b\u003e is a rack-mountable, 4-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 a stereo main output via XLR and 1\/4\" jacks and twelve 1\/4\" TRS stereo headphone outputs—three per channel—fed by a customizable blend of inputs.\u003c\/p\u003e\n\u003cp\u003eOne stereo main input via XLR and 1\/4\" jacks can be mixed with a per-channel 1\/4\" stereo aux input. Each channel offers 2-band EQ for quick tone shaping, stereo balance or main\/aux input mix control, and output level adjustments. Also on each channel are switches for muting left and\/or right signals and operating in stereo or mono. 7-segment LED meters display main input and per-channel output levels.\u003c\/p\u003e\n\u003cp\u003eThe HM-400 ships with an IEC power cable and occupies 1 RU in a standard 19\" rack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eDistribute signal to up to twelve pairs of headphones\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOccupies 1 RU\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne stereo main input via XLR or 1\/4\" jacks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne 1\/4\" stereo aux input per channel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eOne stereo main output via XLR or 1\/4\" jacks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eThree 1\/4\" headphone outputs—one on the front panel and two on the rear—per channel fed by an output level control\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e2-band EQ per channel for quick treble and bass adjustments\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003ePer-channel Balance knob allows control of left\/right level balance or aux\/main input mix\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eSwitches on each channel for L\/R mute and St\/2-Ch (stereo\/mono) mode\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e7-segment LED metering for input and each output channel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_18Nt9BkVcYQO2jcxURBPUl\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003eHeavy-gauge steel chassis for rugged durability\u003c\/div\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\n\u003cdiv class=\"title_1tNQ83iPOOgJ6m5fVkxmSw\"\u003e\n\u003ch2 data-selenium=\"specsItemTitle\" class=\"title1_17KKS47kFEQb7ynVBsRb_5 reset_gKJdXkYBaMDV-W3ignvsP primary_ELb2ysditdCtk24iMBTUs\"\u003eMackie HM-400 Specs\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group_K7YrQottgVsRZ4B6zAaGG\"\u003e\n\u003ctable class=\"table_o418fscimQZEg1oshu4aX\" data-selenium=\"specsItemGroupTable\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eInput Connections\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e2 x XLR 3-pin balanced (one stereo pair)\u003cbr\u003e 2 x 1\/4\" TRS balanced (one stereo pair, also accepts 1\/4\" TS unbalanced)\u003cbr\u003e 1 x 1\/4\" TRS stereo unbalanced for main input\u003cbr\u003e 4 x 1\/4\" TRS stereo unbalanced for aux inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eOutput Connectors\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e2 x XLR 3-pin balanced (one stereo pair)\u003cbr\u003e 2 x 1\/4\" TRS balanced (one stereo pair, also accepts 1\/4\" TS unbalanced)\u003cbr\u003e 12 x 1\/4\" TRS stereo unbalanced headphone outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eMaximum Input Level\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: +15 dBu\u003cbr\u003e Aux Input: +20 dBu\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eMaximum Output Level\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeadphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: 20 kOhms balanced, 10 kOhms unbalanced\u003cbr\u003e Aux Input: 10 kOhms unbalanced\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeadphone Outputs: 3 Ohms unbalanced\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eGain Range\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: -66 to +18 dBu\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eFunction Controls\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003ePower on\/off\u003cbr\u003e Main level knob\u003cbr\u003e L\/R mute switches per channel\u003cbr\u003e Stereo\/2-Ch switches per channel\u003cbr\u003e 2-band EQ per channel\u003cbr\u003e Balance knob per channel\u003cbr\u003e Output knob per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e20 Hz to 20 kHz (±1 dB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eTHD\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eNoise\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e-66 dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eCMRR\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eMain Input: \u0026gt;42 dB at 1 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eDisplay\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1 x input level meter\u003cbr\u003e 4 x output level meters\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePower Requirement\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e100 to 120 VAC, 50\/60 Hz, 24 W\u003cbr\u003e 220 to 240 VAC, 50\/60 Hz, 24 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePower Connector\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1 x 3-pin IEC male, 250 VAC, 10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eConstruction Material\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHeavy-gauge steel chassis\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e1.8 x 19.0 x 8.8\" \/ 46 x 483 x 224 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e8 lb \/ 3.6 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group_K7YrQottgVsRZ4B6zAaGG\"\u003e\n\u003cdiv class=\"name_3mapjiENorVzh8SvFyXVPc\" data-selenium=\"specsItemGroupName\"\u003ePackaging Info\u003c\/div\u003e\n\u003ctable class=\"table_o418fscimQZEg1oshu4aX\" data-selenium=\"specsItemGroupTable\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL \" data-selenium=\"specsItemGroupTableColumnLabel\"\u003ePackage Weight\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v \" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e10.5 lb\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eBox Dimensions (LxWxH)\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e20.8 x 10.6 x 4.1\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}

Mackie HM-400 4-channel Headphone Amplifier

Product Description
$179.99
Maximum quantity available reached.

HM Series Headphone Amplifiers

Expand
Your Versatility

Perfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution.

Flexible

Headphone amplification

Whether you need to expand your home studio headphone monitoring capability or add robust cue mix distribution, the affordable HM Series offers the sound quality, reliability, and flexibility you need to expand your setup.

The ultra-compact HM-4 offers a simple yet effective way to split a single stereo signal out into four pairs of headphones. Perfect for quickly splitting a phones mix in the studio or even crowding around a tablet to watch a movie at home.

The two 19" rackmount models, the HM-400 and HM-800, deliver flexible, robust headphone distribution for studios, practice spaces and more.

Features​

Great-sounding, reliable headphone amplification

superior

Excellent Sound Quality

Premium analog circuitry and design delivers an ultra-low noise floor and high headroom. 

 
 

Choice

Ultra-Flexible

From a simple yet effective way to split a single stereo signal out to four pairs of headphones to robust headphone distribution, the HM Series offers a wide range of options to suit your needs. 


rugged

Built-Like-A-Tank™

With a heavy-gauge steel chassis, long wear potentiometers and switches

Mackie HM-400 Overview

The Mackie HM-400 is a rack-mountable, 4-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 a stereo main output via XLR and 1/4" jacks and twelve 1/4" TRS stereo headphone outputs—three per channel—fed by a customizable blend of inputs.

One stereo main input via XLR and 1/4" jacks can be mixed with a per-channel 1/4" stereo aux input. Each channel offers 2-band EQ for quick tone shaping, stereo balance or main/aux input mix control, and output level adjustments. Also on each channel are switches for muting left and/or right signals and operating in stereo or mono. 7-segment LED meters display main input and per-channel output levels.

The HM-400 ships with an IEC power cable and occupies 1 RU in a standard 19" rack.

Distribute signal to up to twelve pairs of headphones
Occupies 1 RU
One stereo main input via XLR or 1/4" jacks
One 1/4" stereo aux input per channel
One stereo main output via XLR or 1/4" jacks
Three 1/4" headphone outputs—one on the front panel and two on the rear—per channel fed by an output level control
2-band EQ per channel for quick treble and bass adjustments
Per-channel Balance knob allows control of left/right level balance or aux/main input mix
Switches on each channel for L/R mute and St/2-Ch (stereo/mono) mode
7-segment LED metering for input and each output channel
Heavy-gauge steel chassis for rugged durability

Mackie HM-400 Specs

Number of Channels 4
Input Connections 2 x XLR 3-pin balanced (one stereo pair)
2 x 1/4" TRS balanced (one stereo pair, also accepts 1/4" TS unbalanced)
1 x 1/4" TRS stereo unbalanced for main input
4 x 1/4" TRS stereo unbalanced for aux inputs
Output Connectors 2 x XLR 3-pin balanced (one stereo pair)
2 x 1/4" TRS balanced (one stereo pair, also accepts 1/4" TS unbalanced)
12 x 1/4" TRS stereo unbalanced headphone outputs
Maximum Input Level Main Input: +15 dBu
Aux Input: +20 dBu
Maximum Output Level Headphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu)
Input Impedance Main Input: 20 kOhms balanced, 10 kOhms unbalanced
Aux Input: 10 kOhms unbalanced
Output Impedance Headphone Outputs: 3 Ohms unbalanced
Gain Range Main Input: -66 to +18 dBu
Function Controls Power on/off
Main level knob
L/R mute switches per channel
Stereo/2-Ch switches per channel
2-band EQ per channel
Balance knob per channel
Output knob per channel
Frequency Response 20 Hz to 20 kHz (±1 dB)
THD
Noise -66 dB
CMRR Main Input: >42 dB at 1 kHz
Display 1 x input level meter
4 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
Packaging Info
Package Weight 10.5 lb
Box Dimensions (LxWxH) 20.8 x 10.6 x 4.1"
Sku:
Vendor: Mackie

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