{"product_id":"sennheiser-closed-back-circumaural-broadcast-headset-for-backstage-communication-switchable-activegard-super-cardioid-dynamic-microphone-cable-not-included-700315","title":"Sennheiser Closed-back circumaural broadcast headset for backstage communication, switchable ActiveGard, super-cardioid dynamic microphone, cable not included (700315)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Sennheiser HMD 300 Backstage (SKU 700315) is a closed-back circumaural broadcast headset with switchable ActiveGard hearing protection and a supercardioid dynamic boom microphone, designed for backstage broadcast communication in high-SPL live production and broadcast environments. The dual-sided closed earcup construction provides passive noise isolation, and the headband design supports extended wearing comfort during long broadcast sessions. Cable sold separately.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe HMD 300 backstage broadcast headset is built for production professionals who require reliable voice communication and hearing protection during live events and broadcast productions in high-noise environments. The dynamic supercardioid boom microphone delivers clear voice intelligibility in noisy backstage settings, and ActiveGard (switchable at off \/ 95 dB \/ 110 dB) protects against sudden audio peaks during live monitoring. The closed circumaural design provides up to 32 dB of passive noise attenuation. Headphone frequency response of 60 Hz–25 kHz covers program audio and IFB monitoring requirements. Boom wearable on either left or right side. Compatible with Sennheiser Cable 26-II series (sold separately).\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 for backstage and high-SPL environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActiveGard Hearing Protection\u003c\/strong\u003e — Switchable (off \/ 95 dB \/ 110 dB) for protection against sudden audio bursts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupercardioid Dynamic Microphone\u003c\/strong\u003e — Clear voice in noisy backstage environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60 Hz–25 kHz Headphone Response\u003c\/strong\u003e — Accurate reproduction for program audio and IFB.\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 Compatible\u003c\/strong\u003e — Cables sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBackstage broadcast communications during live productions\u003c\/li\u003e\n\u003cli\u003eBroadcast studio production headset\u003c\/li\u003e\n\u003cli\u003eLive event production floor 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\"\u003e700315\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\"\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\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.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow does the HMD 300 Backstage differ from the standard HMD 300?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eBoth share the same HMD 300 platform. The backstage designation indicates this configuration is optimized for high-SPL backstage communication environments. Check with Creation Networks at \u003ca href=\"https:\/\/creationnetworks.net\"\u003ecreationnetworks.net\u003c\/a\u003e for specific connector and impedance configuration details.\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":47711634653420,"sku":"700315","price":329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/Zz1hMTZkODFhMGU3Y2MxMWYwYTM1NGVhNTViNWQyZmI4Ng.png?v=1780784130","url":"https:\/\/creationnetworks.net\/products\/sennheiser-closed-back-circumaural-broadcast-headset-for-backstage-communication-switchable-activegard-super-cardioid-dynamic-microphone-cable-not-included-700315","provider":"Creation Networks","version":"1.0","type":"link"}