{"product_id":"glensound-gs-et1-single-channel-audio-transformer-isolation","title":"Glensound GS-ET1 | Single Channel Audio Transformer Isolation","description":"\u003cp\u003eSingle channel audio isolation using high specification Lundahl transformers Single Channel Audio Transformer Isolation\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePortable single audio channel isolating transformer\u003c\/li\u003e\n\u003cli\u003eEarth lift switch on input\u003c\/li\u003e\n\u003cli\u003eUnique centre tap switch for connecting transformer core to different ground circuits\u003c\/li\u003e\n\u003cli\u003eIdeal for reducing noise at outside broadcasts and events\u003c\/li\u003e\n\u003cli\u003eVery high quality Lundahl audio transformer\u003c\/li\u003e\n\u003cli\u003eVery good line balance\u003c\/li\u003e\n\u003cli\u003eExcellent Common Mode Rejection\u003c\/li\u003e\n\u003cli\u003eRobust lightweight aluminium chassis\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"tab-content\" id=\"tab2content\"\u003e\n\u003cp\u003eThe Glensound External Transformer (ET) range was designed to help a specific outside broadcast customer who was having no luck in curing hum problems with cheap DI boxes. This customer was providing audio facilities in a venue away from the OB truck and there was sometimes hum being received at the OB truck on his output circuits. The input circuits of a professional audio device should of course be able to handle this situation but as our customer was a freelance contractor for the OB company he wasn't in the situation that he could tell his employer that their multi million pound OB truck had a rubbish audio desk. Our solution was to design a transformer isolating unit starting with a very good quality audio transformer from Lundal and adding a unique feature of a variable centre tap switch.\u003c\/p\u003e\n\u003cp\u003eThe unique centre tap switch allows the transformers' centre tap to be connected to either the devices' input ground, output ground or isolated from both. This switch alongside the use of the Lundhal transformer solved our customers' problems.\u003c\/p\u003e\n\u003cp\u003eAlthough originally designed for use at the output end of an audio circuit the ET range can of course be used to reduce problems at the input end of the circuit as well.\u003c\/p\u003e\n\u003cp\u003eCurrently the range consists of single channel, dual channel \u0026amp; four channel rugged portable boxes, please contact us if you would like a 1RU rack or more channels in a portable unit as the modular nature of the design allows us to do this easily. \u003c\/p\u003e\n\u003cp\u003e    \u003c\/p\u003e \u003c\/div\u003e\u003ch4\u003eTechnical Information\u003c\/h4\u003e\u003cdiv class=\"tab-content\" id=\"tab3content\"\u003e\n\u003cp\u003eclip point \u0026gt; +28dBu into 150R\u003c\/p\u003e\n\u003cp\u003eNoise (A weighted 20Hz -22KHz) 300R Termination -117dBu (in all switch conditions)\u003c\/p\u003e\n\u003cp\u003eInput impedance 4.8k\u003c\/p\u003e\n\u003cp\u003eOutput impedance 106R\u003c\/p\u003e\n\u003cp\u003eInsertion loss \u0026lt; 0.2dB @ 1kHz (100k load)\u003c\/p\u003e\n\u003cp\u003eTHD @ 1kHz +4dBu = \u0026lt; 0.02%\u003c\/p\u003e \u003c\/div\u003e\u003ch4\u003eOfficial Resources\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/product-details\/gs-et01\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOfficial Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/assets\/library\/5773b2568aca0-Glensound%20Catalogue%2019%20LQ.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOfficial Glensound Catalogue PDF\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Glensound","offers":[{"title":"Default Title","offer_id":53671448117589,"sku":"GS-ET1","price":286.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/6993\/3141\/files\/Glensound_Glensound_GS_ET1_Single_Channel_Audio_Transformer_Isolation_01.jpg?v=1776026951","url":"https:\/\/tvpro.lt\/products\/glensound-gs-et1-single-channel-audio-transformer-isolation","provider":"tvpro.lt – Broadcast \u0026 Pro Video Equipment Online Store","version":"1.0","type":"link"}