{"product_id":"sennheiser-closed-circumaural-headset-for-broadcast-activegard-limiting-technology-supercardioid-dynamic-microphone-cable-not-included-700322","title":"Sennheiser Closed circumaural headset for broadcast, ActiveGard limiting technology, supercardioid dynamic microphone, cable not included (700322)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Sennheiser HMD 300 (SKU 700322) is a closed circumaural professional broadcast headset combining switchable ActiveGard hearing protection with a supercardioid dynamic boom microphone, designed for backstage broadcast communication and live production environments. The dual-sided closed earcup construction provides up to 32 dB of passive noise attenuation, and the headphone frequency response of 60 Hz–25 kHz delivers accurate program audio reproduction. Cable sold separately; compatible with Sennheiser Cable 26-II series.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe HMD 300 dual-sided circumaural broadcast headset is built around the same acoustic platform as the HMD 300 PRO, featuring a pressure-sensitive headband design for extended wearing comfort and a dynamic supercardioid boom microphone optimized for speech intelligibility in noisy backstage and production environments. ActiveGard hearing protection is switchable with three attenuation settings (off \/ 95 dB \/ 110 dB) to protect against sudden audio peaks during live production monitoring. Maximum SPL is 123 dB (ActiveGard off). The boom microphone can be worn on left or right side. The modular cable system is compatible with the Sennheiser Cable 26-II series (sold separately), supporting standard broadcast intercom connectors. Passive ambient noise attenuation of up to 32 dB suits high-noise production floor and outside broadcast environments.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed Circumaural Design\u003c\/strong\u003e — Up to 32 dB passive noise attenuation from the fully enclosed earcup construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActiveGard Hearing Protection\u003c\/strong\u003e — Switchable (off \/ 95 dB \/ 110 dB) protection against sudden audio bursts during live monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupercardioid Dynamic Microphone\u003c\/strong\u003e — Noise-compensated boom mic delivers clear voice in noisy broadcast environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60 Hz–25 kHz Headphone Response\u003c\/strong\u003e — Accurate reproduction of program audio and IFB feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e123 dB Max SPL (ActiveGard Off)\u003c\/strong\u003e — High headphone output for loud monitoring environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoom Wearable Left or Right\u003c\/strong\u003e — Configurable without tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable 26-II Series Compatible\u003c\/strong\u003e — Modular connector system; cables sold separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure-Sensitive Headband\u003c\/strong\u003e — Comfortable for extended broadcast session use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBroadcast studio production headset\u003c\/li\u003e\n\u003cli\u003eOutside broadcast (OB) and live event production\u003c\/li\u003e\n\u003cli\u003eBackstage and intercom communications\u003c\/li\u003e\n\u003cli\u003eGovernment and institutional broadcast\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f5f5f5\"\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e700322\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eClosed circumaural, dual-sided\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eHeadphone Frequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e60 Hz – 25 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMax SPL (ActiveGard Off)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e123 dB SPL @ 1 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003ePassive Noise Attenuation\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eUp to 32 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eHearing Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eActiveGard: off \/ 95 dB \/ 110 dB (switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMicrophone Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eDynamic, supercardioid (noise-compensated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eCable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eNot included (Cable 26-II series compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat cable is required?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eSennheiser Cable 26-II series, sold separately in multiple connector configurations for studio, intercom, and field use.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs there a version with NoiseGard active noise compensation?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. The HMD 300 PRO NoiseGard (SKU 700324) adds active ambient noise compensation to the same platform. Available at \u003ca href=\"https:\/\/creationnetworks.net\/collections\/sennheiser\"\u003ecreationnetworks.net\/collections\/sennheiser\u003c\/a\u003e.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan the boom be configured for either side?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. The boom is wearable on left or right side without tools.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat is the warranty?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eStandard 2-year Sennheiser warranty.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":47711634456812,"sku":"700322","price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/Zz05N2VlMzA2NmU3Y2MxMWYwYWE5OGVhNTViNWQyZmI4Ng.png?v=1780784107","url":"https:\/\/creationnetworks.net\/products\/sennheiser-closed-circumaural-headset-for-broadcast-activegard-limiting-technology-supercardioid-dynamic-microphone-cable-not-included-700322","provider":"Creation Networks","version":"1.0","type":"link"}