{"product_id":"listen-technologies-cls2-induction-loop-driver-usa","title":"Listen Technologies CLS2 – Induction Loop Driver","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Listen Technologies CLS2 is a wall mount perimeter induction loop driver covering up to 400m², supplied in the USA configuration complete with mains lead. It delivers more than 4.9Arms continuous with four independent inputs, including a 100V line input for taking a feed from an existing paging amplifier. Four inputs and 400m² of coverage make it the practical choice for a mid-size venue without rack space.\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\/cls2_front_open.jpg?v=1787627497\" alt=\"Listen Technologies CLS2 induction loop driver\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eCoverage reaches 250m² at a 1:1 aspect ratio, 310m² at 2:1 and 400m² at 3:1, so loop geometry is as important as floor area when specifying. Output is more than 4.9Arms continuous at 1kHz with short term peaks above 7Arms, into loops from 0.2Ω minimum to 1.3Ω maximum impedance. Frequency response is 80Hz to 6.3kHz ±3dB. Four independent inputs cover most retrofit situations: two balanced mic\/line at 10kΩ, a third balanced or unbalanced line input with 12V DC accessory power at up to 100mA, and a fourth accepting either a 100V line or a low impedance speaker feed. That last input is what allows a loop to be added to a building with an existing paging system without re-engineering the audio distribution. The chassis is 200 x 200 x 44mm at 1.8kg, wall mounted via four screws, IP20 rated and specified for -10°C to +40°C. Power draw is 30W nominal, rising to 63W at continuous full output.\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\u003eUp to 400m² coverage\u003c\/strong\u003e — Covers 250m² at 1:1, 310m² at 2:1 and 400m² at 3:1 aspect ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver 4.9Arms continuous output\u003c\/strong\u003e — Drives loops from 0.2Ω with short term peaks above 7Arms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour independent inputs\u003c\/strong\u003e — Includes 100V line and low impedance speaker input for retrofit onto existing paging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V DC accessory power\u003c\/strong\u003e — Input 3 supplies up to 100mA for a powered microphone or accessory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeech optimised AGC\u003c\/strong\u003e — Maintains consistent output across more than 36dB of dynamic 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 correction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall mounting\u003c\/strong\u003e — Fixes via four screws without requiring rack space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP20 rated\u003c\/strong\u003e — Specified for -10°C to +40°C indoor commercial environments.\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;\"\u003eCLS2\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;\"\u003e250m² (1:1), 310m² (2:1), 400m² (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;\"\u003eOutput Current\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e\u0026gt;4.9Arms 7.0Apk continuous 1kHz sine; short term peaks \u0026gt;7Arms 10Apk\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;\"\u003eMinimum 0.2Ω; maximum impedance 1.3Ω\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 6.3kHz ±3dB\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;\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eFour independent: Input 1-2 balanced mic\/line (10kΩ); Input 3 balanced\/unbalanced line with 12V DC accessory power (100mA max); Input 4 100V line or low impedance speaker\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, dynamic 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;\"\u003e0 to 3dB per octave frequency correction\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\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e230V, 30W (120V option available); 63W at continuous full 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;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e200mm W × 200mm H × 44mm D\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;\"\u003eWall mounting via 4 screws\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;\"\u003eIngress Protection\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003eIP20\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;\"\u003eOperating Range\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #ddd;\"\u003e-10°C to +40°C\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 CLS2 product data. This part number is the USA PC version supplied with mains lead.\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\nFour independent inputs: two balanced mic\/line at 10kΩ, a third balanced or unbalanced line input with 12V DC accessory power, and a fourth accepting a 100V line or low impedance speaker feed from an existing paging system.\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\nWall mounted via four screws. No rack space is required, which suits retrofit into buildings with no AV rack.\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":48228840767724,"sku":"CLS2","price":1071.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/cls2_front_open.jpg?v=1787627497","url":"https:\/\/creationnetworks.net\/products\/listen-technologies-cls2-induction-loop-driver-usa","provider":"Creation Networks","version":"1.0","type":"link"}