{"product_id":"listen-technologies-ild122-induction-loop-driver-us-110v","title":"Listen Technologies ILD122 – Induction Loop Driver","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Listen Technologies ILD122 is a professional rack mountable induction loop driver covering areas above 200m², supplied in the US 110V configuration with a US cordset. It delivers 3.5Arms continuous into loops from 0.2 to 1.8Ω, with AGC optimised for speech and adjustable metal loss correction. Three mounting options — freestanding, 1U rack or wall — make it practical in rooms where rack space is not available. It suits mid-size auditoriums, houses of worship and multi-purpose rooms.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003ePerimeter loop drivers are selected on loop area, aspect ratio and the metal loss measured during survey, not on room capacity. Two rooms of identical floor area can require different current ratings if one has a steel deck and the other does not.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/ild122_profile_09082012-1.png?v=1787627497\" alt=\"Listen Technologies ILD122 induction loop driver\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe ILD122 covers up to 120m² at a 1:1 aspect ratio, 150m² at 2:1 and 200m² at 3:1, which is why the shape of the loop matters as much as the floor area when sizing a driver. Drive current is 3.5Arms continuous at 1kHz with short term peaks above 7Apk, into loop resistances from 0.2 to 1.8Ω. Frequency response covers 80Hz to 6.5kHz with THD+N below 0.2% at full current. AGC is optimised for speech with more than 36dB of range, and metal loss correction adjusts the gain slope from 0 to 3dB per octave to compensate for steel in the structure. Inputs are an XLR balanced microphone input for 200-600Ω microphones with 15dB user selectable gain boost, plus a 6.4mm balanced line jack. The chassis is 215 x 220 x 44mm at 1.8kg.\u003c\/p\u003e\u003cp\u003eLoop 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.\u003c\/p\u003e\u003cp\u003eCommissioning is a measurement exercise against IEC 60118-4, not a listening check. Pair 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, and use a \u003ca href=\"https:\/\/creationnetworks.net\/products\/listen-technologies-hls-2d-metal-loss-test-driver\"\u003emetal loss test driver\u003c\/a\u003e at survey stage where the structure contains significant steel.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver 200m² coverage\u003c\/strong\u003e — Covers 120m² at 1:1, 150m² at 2:1 and 200m² at 3:1 aspect ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5Arms continuous output\u003c\/strong\u003e — Drives loops from 0.2 to 1.8Ω with short term peaks above 7Apk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeech optimised AGC\u003c\/strong\u003e — Holds output consistent across more than 36dB of input range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable metal loss correction\u003c\/strong\u003e — Compensates for structural steel with 0 to 3dB per octave gain slope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXLR microphone and jack line inputs\u003c\/strong\u003e — Accepts 200-600Ω microphones with 15dB gain boost, or a balanced line feed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree mounting options\u003c\/strong\u003e — Installs freestanding, in a 1U 19-inch rack, or wall mounted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow distortion\u003c\/strong\u003e — THD+N below 0.2% at 1kHz at full current output.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAuditorium\u003c\/li\u003e\n\u003cli\u003eHouse of worship\u003c\/li\u003e\n\u003cli\u003eConference room\u003c\/li\u003e\n\u003cli\u003eBoardroom\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:470px;\"\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)\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;\"\u003eILD122\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;\"\u003eMaximum Area Coverage\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u0026gt;200m² depending on aspect ratio: 120m² (1:1), 150m² (2:1), 200m² (3:1)\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;\"\u003eDrive Current\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e3.5Arms (5Apk) continuous 1kHz sine; short term peaks \u0026gt;7Apk\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;\"\u003eDrive Voltage\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e8.5Vrms (12Vpk) at maximum current output\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 Resistance\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e0.2 to 1.8Ω; maximum impedance 2.0Ω\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;\"\u003eFrequency Response\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e80Hz to 6.5kHz\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;\"\u003eDistortion\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eTHD+N \u0026lt;0.2% 1kHz sine at full current\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;\"\u003eAGC\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eOptimised for speech, range \u0026gt;36dB\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;\"\u003eMetal Loss Correction\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eAdjustable gain slope, 0 to 3dB per octave\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;\"\u003eMicrophone Input\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eXLR balanced for 200-600Ω microphones, 15dB user selectable gain boost\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;\"\u003eLine Input\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e6.4mm jack socket, balanced\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;\"\u003ePower Supply\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e35W, 230V AC nominal, 45-65Hz (120V option available)\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;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e215mm W × 220mm D × 44mm H\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;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e1.8 kg\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;\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eFreestanding, 1U 19\" rack mount, or wall mounting\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;\"\u003eCompliance\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eCE marked to all relevant safety and EMC standards\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 ILD122 datasheet (UP32501-13). This part number is the US 110V configuration.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow do I size the driver for my room?\u003c\/strong\u003e\u003cbr\u003e\nBy loop area, aspect ratio and measured metal loss, not by room capacity. A long narrow room covers more area for the same current than a square one, which is why coverage is quoted at 1:1, 2:1 and 3:1 aspect ratios.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat audio sources can feed it?\u003c\/strong\u003e\u003cbr\u003e\nAn XLR balanced microphone input for 200-600Ω microphones with 15dB user selectable gain boost, plus a 6.4mm balanced line jack for a mixer or DSP feed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is metal in the structure handled?\u003c\/strong\u003e\u003cbr\u003e\nMetal loss correction adjusts the gain slope to compensate for absorption by steel in the floor or ceiling. The loss should be measured at survey with a metal loss test driver rather than estimated.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the installation certified?\u003c\/strong\u003e\u003cbr\u003e\nBy measuring field strength, background noise and frequency response against IEC 60118-4 with a field strength meter. A listening check does not demonstrate compliance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the unit mounted?\u003c\/strong\u003e\u003cbr\u003e\nFreestanding, in a 1U 19-inch rack, or wall mounted. That flexibility suits retrofit work where rack space was not allowed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat loop cable should I use?\u003c\/strong\u003e\u003cbr\u003e\n14 AWG hearing loop cable is the common choice for perimeter runs. Copper foil tape is used where a flat profile is needed under floor coverings, joined to cable with crimp lugs.\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 terms, RMA handling and pre-sales hearing loop design support.\u003c\/p\u003e","brand":"Listen Technologies","offers":[{"title":"Default Title","offer_id":48228840866028,"sku":"ILD122","price":1292.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/ild122_profile_09082012-1.png?v=1787627497","url":"https:\/\/creationnetworks.net\/products\/listen-technologies-ild122-induction-loop-driver-us-110v","provider":"Creation Networks","version":"1.0","type":"link"}