{"product_id":"sennheiser-hmdc-27-broadcast-headset-dynamic-mic-incl-noisegard","title":"Sennheiser HMDC 27 Broadcast Headset, Dynamic Mic, Incl. NoiseGard","description":"\u003cdiv class=\"markdown markdown-main-panel tutor-markdown-rendering enable-luminous-fast-follows stronger enable-updated-hr-color\" id=\"model-response-message-contentr_e2784a063e21bd02\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp data-path-to-node=\"0\"\u003eSennheiser HMDC 27 Professional Circumaural Broadcast Headset\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003eThe Sennheiser HMDC 27 (Current Article Number: \u003cb data-path-to-node=\"1\" data-index-in-node=\"48\"\u003e700324\u003c\/b\u003e, Legacy: \u003cb data-path-to-node=\"1\" data-index-in-node=\"64\"\u003e506978\u003c\/b\u003e) is a premium, top-of-the-line closed-back circumaural (over-ear) broadcast headset engineered specifically for sports commentators, field journalists, and live audio engineers working in environments with extreme ambient noise levels (such as racetracks, football stadiums, or concert arenas).\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eThe \u003cb data-path-to-node=\"2\" data-index-in-node=\"4\"\u003e\"C\" designation\u003c\/b\u003e sets this model apart within the 27-series family: it integrates Sennheiser's patented \u003cb data-path-to-node=\"2\" data-index-in-node=\"107\"\u003eNoiseGard active noise cancellation (ANR) technology\u003c\/b\u003e. This system combines high passive isolation with electronic noise reduction while utilizing a high-output dynamic microphone capsule to deliver broadcast-quality speech.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"4\"\u003eKey Acoustic and Operational Attributes\u003c\/h3\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eBattery-Free NoiseGard Active Protection:\u003c\/b\u003e The built-in Active Noise Cancellation (ANR) circuit suppresses an additional 15 dB of low-frequency rumble (such as engine roar, crowd drone, or PA build-up). It operates without batteries, drawing passive operating current directly from standard 12V to 48V phantom power on the incoming microphone channel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eBMD 434 Dynamic Hypercardioid Microphone:\u003c\/b\u003e Outfitted with a premium dynamic capsule that exhibits a highly directional hypercardioid polar pattern. It tracks vocals with high precision while ignoring ambient environment noise and preventing feedback from nearby public address systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eOnboard Switchable ActiveGard Limiter:\u003c\/b\u003e Features an analog, mechanical switch-controlled ActiveGard circuit. When toggled on, it acts as an automatic safety buffer that tames unexpected incoming signal bursts over 110 dB SPL to shield the operator's hearing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003ePressure-Free Two-Piece Split Headband:\u003c\/b\u003e Uses an automatically opening split headband structure that spreads apart to shift pressure away from the sensitive areas of the skull. A wide, solid padding wrap is also included in the box for engineers who prefer a traditional single-band profile.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eModular Multi-Pin Connection Base:\u003c\/b\u003e Ships from the factory with an un-cabled connector socket. This modular design interfaces with Sennheiser's Cable-II series (such as the \u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"172\"\u003eX3K1 XLR\/1\/4\" combo cable\u003c\/b\u003e), allowing technicians to replace damaged lines instantly or swap connection formats in the field.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eTechnical Specifications Matrix\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"8\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature Parameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Specification Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,0,0\"\u003e\u003cb data-path-to-node=\"8,1,0,0\" data-index-in-node=\"0\"\u003eModel Reference Name\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,1,0\"\u003eHMDC 27\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,0,0\"\u003e\u003cb data-path-to-node=\"8,2,0,0\" data-index-in-node=\"0\"\u003eOfficial Article Numbers\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,1,0\"\u003e\u003cb data-path-to-node=\"8,2,1,0\" data-index-in-node=\"0\"\u003e700324\u003c\/b\u003e (Current Reference) \/ 506978 (Legacy)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,0,0\"\u003e\u003cb data-path-to-node=\"8,3,0,0\" data-index-in-node=\"0\"\u003eGlobal Trade Product Code (UPC)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,1,0\"\u003e615104390317\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,4,0,0\"\u003e\u003cb data-path-to-node=\"8,4,0,0\" data-index-in-node=\"0\"\u003eHeadphone Design \/ Coupling\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,4,1,0\"\u003eDynamic, Closed-Back \/ Circumaural (Around-the-Ear)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,5,0,0\"\u003e\u003cb data-path-to-node=\"8,5,0,0\" data-index-in-node=\"0\"\u003eHeadphone Nominal Impedance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,5,1,0\"\u003e\u003cb data-path-to-node=\"8,5,1,0\" data-index-in-node=\"0\"\u003e600 Ohms (ANR Engaged)\u003c\/b\u003e \/ 200 Ohms (ANR Disengaged)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,6,0,0\"\u003e\u003cb data-path-to-node=\"8,6,0,0\" data-index-in-node=\"0\"\u003eHeadphone Frequency Response\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,6,1,0\"\u003e4 Hz to 21,000 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,7,0,0\"\u003e\u003cb data-path-to-node=\"8,7,0,0\" data-index-in-node=\"0\"\u003eMicrophone Transducer Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,7,1,0\"\u003eDynamic (BMD 434 Component Model)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,8,0,0\"\u003e\u003cb data-path-to-node=\"8,8,0,0\" data-index-in-node=\"0\"\u003eMicrophone Pickup Pattern\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,8,1,0\"\u003eHypercardioid\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,9,0,0\"\u003e\u003cb data-path-to-node=\"8,9,0,0\" data-index-in-node=\"0\"\u003eMicrophone Frequency Response\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,9,1,0\"\u003e40 Hz to 18,000 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,10,0,0\"\u003e\u003cb data-path-to-node=\"8,10,0,0\" data-index-in-node=\"0\"\u003eMicrophone Nominal Impedance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,10,1,0\"\u003e300 Ohms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,11,0,0\"\u003e\u003cb data-path-to-node=\"8,11,0,0\" data-index-in-node=\"0\"\u003eActive Noise Cancellation (ANR)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,11,1,0\"\u003eNoiseGard Technology (Additional 15 dB attenuation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,12,0,0\"\u003e\u003cb data-path-to-node=\"8,12,0,0\" data-index-in-node=\"0\"\u003eActiveGard Safety Threshold\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,12,1,0\"\u003eSuppresses audio peaks exceeding 110 dB SPL\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,13,0,0\"\u003e\u003cb data-path-to-node=\"8,13,0,0\" data-index-in-node=\"0\"\u003eNet Structural Weight (No Cable)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,13,1,0\"\u003eApprox. 240 grams (8.46 oz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eIn the Box: Production Package Inventory\u003c\/h3\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003e1 x Sennheiser HMDC 27\u003c\/b\u003e Broadcast Headset\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003e1 x Broad Single Headband Converting Cushion\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003e1 x High-Density Wind and Pop Screen\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003e1 x HZS 11 Cable Attachment Anchor Clip\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,4,0\"\u003e\u003cb data-path-to-node=\"11,4,0\" data-index-in-node=\"0\"\u003e1 x Quick Start Technical Guide\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,5,0\"\u003e\u003ci data-path-to-node=\"11,5,0\" data-index-in-node=\"0\"\u003e(Note: Connection cables are sold separately according to studio infrastructure needs).\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"13\"\u003eField Configuration and Power Management Advice\u003c\/h3\u003e\n\u003cblockquote data-path-to-node=\"14\"\u003e\n\u003cp data-path-to-node=\"14,0\"\u003e\u003cb data-path-to-node=\"14,0\" data-index-in-node=\"0\"\u003ePowering the NoiseGard Active System Safely:\u003c\/b\u003e Because the internal NoiseGard circuit is engineered to be battery-free, it relies entirely on the \u003cb data-path-to-node=\"14,0\" data-index-in-node=\"144\"\u003eP12 to P48 Phantom Power\u003c\/b\u003e line sent down the microphone XLR path from your mixing console, intercom matrix, or commentator unit. If your incoming microphone channel strip's 48V phantom power toggle is turned off, the microphone will still work perfectly as a passive dynamic element, but the electronic active noise cancellation system in the ear cups will remain inactive. Turn phantom power on to activate the extra 15 dB of environment noise reduction.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote data-path-to-node=\"15\"\u003e\n\u003cp data-path-to-node=\"15,0\"\u003e\u003cb data-path-to-node=\"15,0\" data-index-in-node=\"0\"\u003eProper Strain Relief Integration:\u003c\/b\u003e When threading your chosen single-sided Cable-II module into the headset cup harness, always line up the fine pins squarely before tightening the tiny structural anchor screw. Snap the cable into the included \u003cb data-path-to-node=\"15,0\" data-index-in-node=\"243\"\u003eHZS 11 cable clip\u003c\/b\u003e mounted to the headband frame. This configuration creates a physical strain-relief loop that prevents physical tugs on the cable from pulling on the internal pin matrix.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":52073365274926,"sku":"SEN-700324","price":14019.65,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0157\/2910\/files\/SEN-700324_image1.jpg?v=1782465894","url":"https:\/\/shopvisuals.tv\/products\/sennheiser-hmdc-27-broadcast-headset-dynamic-mic-incl-noisegard","provider":"ShopVisuals.tv","version":"1.0","type":"link"}