{"product_id":"listen-technologies-c7-1-c-series-driver-7a-120v","title":"Listen Technologies C7-1 – 7A perimeter Hearing Loop Driver","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Listen Technologies C7-1 is a 7A hearing loop driver from the Ampetronic C-Series, specified for permanent installation in commercial AV systems where assistive listening is an accessibility requirement. It drives a single perimeter loop and accepts balanced mic\/line and 100V line inputs, so it fits the signal architecture already chosen for the room. Analog mic\/line and 100V line inputs suit rooms where the loop feed comes from a mixer, DSP output or existing paging amplifier. The unit is a compact 1U rack mount chassis with an internal power supply, which keeps a commercial hearing loop system inside the existing AV rack.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe C7-1 sits in the Ampetronic C-Series range that Listen Technologies distributes. The line is built so performance characteristics stay consistent from entry-level rooms up to flagship installations, which matters when a specification has to cover several rooms of different sizes in the same building.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/C7_1_Front_cutout.png?v=1787627479\" alt=\"Listen Technologies C7-1 C-Series hearing loop driver front panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eA perimeter loop driver of this rating is specified for single-room coverage, with the loop conductor run around the boundary of the space. Loop area and the metal loss measured during survey determine the current rating required, so the driver is selected after the loop design rather than before it. The 7A output delivers 20VRMS drive voltage. A switchable 250Hz low cut filter on the mic\/line input helps control low frequency content that would otherwise consume headroom without improving speech intelligibility. \u003c\/p\u003e\u003cp\u003eInstallation is 1U of rack space, or wall mounting using the separately ordered \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-wm-c-lp-wall-mount-kit-for-c-series-5a-and-7a\"\u003eWM-C-LP wall mount kit for C-Series 5A and 7A drivers\u003c\/a\u003e. Loop conductor and terminations are ordered separately: \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-la-396-14-b-14-awg-hearing-loop-cable-black-spool\"\u003e14 AWG hearing loop cable\u003c\/a\u003e for perimeter runs, \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-la-398-foil-to-cable-crimp-lug-14-16-awg-12-pack\"\u003efoil-to-cable crimp lugs\u003c\/a\u003e where copper foil tape meets cable, and \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-acex01-pvc-protective-extrusion-3m-x-50mm-grey\"\u003ePVC protective extrusion\u003c\/a\u003e where the loop is surface run and needs protecting.\u003c\/p\u003e\u003cp\u003eHearing loop performance is verified by measuring magnetic field strength against IEC 60118-4, not by a listening check, so plan the commissioning step at design stage. Most integrators pair the driver with a \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-tfsm01-fsm-field-strength-meter\"\u003efield strength meter\u003c\/a\u003e and its \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-acscc-cables-for-field-strength-meter\"\u003esignal connection cables\u003c\/a\u003e. Where the building structure contains significant steel, a \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-hls-2d-metal-loss-test-driver\"\u003emetal loss test driver\u003c\/a\u003e is used during survey to quantify the loss before the driver rating is fixed.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7A output stage\u003c\/strong\u003e — Delivers 20VRMS drive voltage for single perimeter loop designs sized during loop survey.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle perimeter loop output\u003c\/strong\u003e — Drives one boundary loop, the standard arrangement for single-room coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced mic\/line and 100V line inputs\u003c\/strong\u003e — Accepts a mixer or DSP output, or a feed from an existing 100V paging line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchable 250Hz low cut filter\u003c\/strong\u003e — Removes low frequency content that consumes headroom without improving speech intelligibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1U rack mount with internal power supply\u003c\/strong\u003e — Installs in the AV rack without an external supply or additional rack space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIEC 62489-1 designed\u003c\/strong\u003e — Built to the loop driver performance standard, supporting IEC 60118-4 compliance when correctly installed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent C-Series behaviour\u003c\/strong\u003e — Shares performance characteristics across the range, so a specification carries between rooms of different sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConference room\u003c\/li\u003e\n\u003cli\u003eBoardroom\u003c\/li\u003e\n\u003cli\u003eAuditorium\u003c\/li\u003e\n\u003cli\u003eHouse of worship\u003c\/li\u003e\n\u003cli\u003eGovernment space\u003c\/li\u003e\n\u003cli\u003eTraining room\u003c\/li\u003e\n\u003cli\u003eMulti-purpose room\u003c\/li\u003e\n\u003cli\u003eCommercial meeting space\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:420px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eListen Technologies (Ampetronic C-Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eC7-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eOutput Current\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e7ARMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eLoop Drive Voltage\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e20VRMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eLoop Configuration\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eSingle perimeter loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eAudio Inputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eBalanced mic\/line selectable, switchable 250Hz low cut filter; 100V line input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eLow Cut Filter\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eSwitchable, 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eForm Factor\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eCompact 1U rack mount, internal power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eDesign Standard\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eIEC 62489-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eInstalled Performance\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eSupports IEC 60118-4 and IEC TR 63079 when correctly installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #ddd;\"\u003eApprovals\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eUKCA, CE mark, Regulatory Compliance Mark (RCM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003e\u003cem\u003eSpecifications sourced from the Ampetronic C-Series datasheet (UP39802-7). Confirm loop area and current requirements against a site survey before specifying.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow do I know the 7A rating is right for my room?\u003c\/strong\u003e\u003cbr\u003e\nCurrent rating follows the loop design, not the room dimensions alone. Loop area, aspect ratio and the metal loss measured during survey together determine the drive current required. Confirm the design before fixing the driver model; a metal loss test driver is used on site where the structure contains significant steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat audio sources can feed this driver?\u003c\/strong\u003e\u003cbr\u003e\nThe balanced input is switchable between microphone and line level, and a 100V line input is provided for taking a feed from an existing paging or background music amplifier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be installed outside a rack?\u003c\/strong\u003e\u003cbr\u003e\nYes. The WM-C-LP wall mount kit for C-Series 5A and 7A drivers covers this chassis for installations without rack space, such as equipment closets and AV cupboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the installation need beyond the driver?\u003c\/strong\u003e\u003cbr\u003e\nLoop conductor, terminations, and commissioning equipment. Perimeter runs typically use 14 AWG hearing loop cable, with crimp lugs where copper foil tape meets cable and protective extrusion where the loop is surface run. A field strength meter is required to verify and certify the installed system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the installation certified?\u003c\/strong\u003e\u003cbr\u003e\nHearing loop performance is measured against IEC 60118-4 using a field strength meter. A subjective listening check is not sufficient and will not satisfy an accessibility consultant. Budget the measurement step into the commissioning schedule.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I move up to a MultiLoop driver?\u003c\/strong\u003e\u003cbr\u003e\nWhen overspill into an adjacent room has to be controlled, when the structure has significant metal content, or when a single perimeter run cannot deliver even field strength across the floor area.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty and support apply?\u003c\/strong\u003e\u003cbr\u003e\nWarranty duration and technical support terms are set by Listen Technologies. Contact Creation Networks for current warranty terms, RMA handling and pre-sales support on hearing loop design.\u003c\/p\u003e","brand":"Listen Technologies","offers":[{"title":"Default Title","offer_id":48228838768876,"sku":"C7-1","price":1942.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/C7_1_Front_cutout.png?v=1787627479","url":"https:\/\/creationnetworks.net\/products\/listen-technologies-c7-1-c-series-driver-7a-120v","provider":"Creation Networks","version":"1.0","type":"link"}