{"product_id":"rdl-tx-j3","title":"RDL TX-J3 – Unbalanced Stereo to Balanced Mono Input Transformer","description":"\u003ch2\u003eWhat is the RDL TX-J3?\u003c\/h2\u003e\n\u003cp\u003eThe RDL TX-J3 is a passive input module that mixes two unbalanced line-level sources into a balanced mono output. It brings consumer-format audio from dual RCA jacks or a mini-jack into a professional balanced system.\u003c\/p\u003e\n\u003ch2\u003eHow does it work?\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2025\/09\/tx-j3.jpg\" alt=\"RDL TX-J3 Unbalanced Stereo to Balanced Mono Input Transformer\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe TX-J3 front panel features two gold-plated RCA jacks and a mini-jack input for mono or stereo consumer-level sources; plugging in the mini-jack disables the RCA inputs. Inputs 1 and 2 are combined and balanced through audio transformers configured to reject induced hum. The output is on a detachable terminal block (+, -, ground) for connection to inputs of 10 kΩ or higher, with response of 30 Hz to 20 kHz (±1 dB). Because it is passive and adds no gain, its balanced output is not a standard +4 dBu level. It mounts with RDL TX-series hardware such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-tx-ra5\"\u003eRDL TX-RA5\u003c\/a\u003e rack adapter, the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-tx-rrb1\"\u003eRDL TX-RRB1\u003c\/a\u003e rear rail kit or the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-dra-35t\"\u003eRDL DRA-35T\u003c\/a\u003e DIN rail adapter.\u003c\/p\u003e\n\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual RCA and Mini-Jack Inputs\u003c\/strong\u003e — Gold-plated RCA jacks and a mini-jack accept mono or stereo consumer sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo to Mono Summing\u003c\/strong\u003e — Two unbalanced signals are combined into one balanced mono output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHum Rejection\u003c\/strong\u003e — Audio transformers are configured to reject induced hum on unbalanced lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive Design\u003c\/strong\u003e — The module requires no power and converts unbalanced to balanced without gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetachable Output Terminal Block\u003c\/strong\u003e — The balanced output connects to 10 kΩ or higher inputs on a detachable terminal block.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025740558572,"sku":"TX-J3","price":86.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/tx-j3.jpg?v=1793583010","url":"https:\/\/creationnetworks.net\/products\/rdl-tx-j3","provider":"Creation Networks","version":"1.0","type":"link"}