{"product_id":"mackie-hm-400","title":"Mackie HM-400","description":"\u003ch3\u003eMackie HM-400 – 4-Channel Rackmount Headphone Amplifier for Studio \u0026amp; Live Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe Mackie HM-400 is a professional 4-channel headphone amplifier designed for studios, rehearsal rooms and live monitoring setups requiring clear, powerful and flexible headphone distribution. With robust build quality, per-channel controls and multiple output options, it ensures every performer hears exactly what they need during tracking or performance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 independent headphone channels:\u003c\/strong\u003e Each channel includes three headphone outputs, giving you a total of twelve outputs for multi-user monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible input mixing:\u003c\/strong\u003e A main stereo input can be combined with per-channel 1\/4″ aux inputs to create customized mixes for each performer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-band EQ per channel:\u003c\/strong\u003e Shape tone quickly and adapt to different headphones or listening preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo\/mono \u0026amp; mute switches:\u003c\/strong\u003e Adjust channel behavior with dedicated controls for left\/right mute, stereo\/mono and main\/aux blend.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear metering:\u003c\/strong\u003e 7-segment LED meters provide at-a-glance feedback for both the main input and each channel’s output level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCustomer Benefits\u003c\/h4\u003e\n\u003cp\u003eThe HM-400 gives studios and stage setups dependable and highly customizable monitoring. Performers can dial in the exact mix and tone they need, while engineers can distribute a clean, consistent signal to multiple listeners without complexity. Its rugged rackmount chassis ensures long-term reliability for professional use.\u003c\/p\u003e\n\u003ch4\u003eQuick Specs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain inputs:\u003c\/strong\u003e Stereo XLR + 1\/4″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAux inputs:\u003c\/strong\u003e 4 × per-channel 1\/4″ stereo aux\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone outputs:\u003c\/strong\u003e 12 × 1\/4″ stereo (three per channel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls per channel:\u003c\/strong\u003e Output level, 2-band EQ, stereo\/mono, left\/right mute, balance or main\/aux mix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetering:\u003c\/strong\u003e 7-segment LED meters for main input and each channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 1U rackmount\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s in the Box\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMackie HM-400 headphone amplifier\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eDocumentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUse Cases \/ Ideal For\u003c\/h4\u003e\n\u003cp\u003eRecording studios, podcast teams, rehearsal spaces, small performance venues, broadcast environments and multi-musician tracking sessions.\u003c\/p\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eWorks with standard headphones, audio interfaces, mixers and signal distribution systems using XLR or 1\/4″ connections.\u003c\/p\u003e\n\u003ch4\u003ePros \u0026amp; Cons\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Pros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThree headphone outputs per channel for flexible multi-user setups\u003c\/li\u003e\n\u003cli\u003ePer-channel EQ and mix control\u003c\/li\u003e\n\u003cli\u003eRobust rackmount design\u003c\/li\u003e\n\u003cli\u003eClear metering for accurate level monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Cons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo 3.5 mm headphone outputs—adapters may be required\u003c\/li\u003e\n\u003cli\u003eRequires rack space in fixed installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Mackie HM-400 provides powerful, adaptable and reliable headphone monitoring, making it a trusted choice for professional studios and live environments — available at Soundium.\u003c\/p\u003e","brand":"Mackie","offers":[{"title":"Default Title","offer_id":54243191816460,"sku":"M-HM400","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7416\/0652\/files\/1384523-reg_1.jpg?v=1745049800","url":"https:\/\/soundium.com\/de\/products\/mackie-hm-400","provider":"Soundium","version":"1.0","type":"link"}