{"product_id":"rdl-stm-3","title":"RDL STM-3 – High-Gain Mic Preamp, 45 to 75 dB Gain","description":"\u003ch2\u003eWhat is the RDL STM-3?\u003c\/h2\u003e\u003cp\u003eThe RDL STM-3 is a low-noise microphone preamplifier for surveillance, commercial sound, broadcast and recording where higher than normal gain is required. Gain adjusts from 45 to 75 dB.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/stm-3.jpg\" alt=\"RDL STM-3 High-Gain Mic Preamp, 45 to 75 dB Gain\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eIt accepts high or low impedance microphones and provides two outputs that can be wired balanced or unbalanced. Filtered 24 Vdc IEC phantom capability is available for condenser microphones. The supply input operates from 24 Vdc, and operation from 12 Vdc is possible with 6 dB less headroom. Each output drives high or low impedance loads, and a 24 Vdc supply such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ps-24ax\"\u003eRDL PS-24AX 24 Vdc power supply\u003c\/a\u003e is recommended. STICK-ON modules mount in the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-str-19b\"\u003eRDL STR-19B racking system\u003c\/a\u003e or on a rear rack rail with the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-st-rrb1\"\u003eRDL ST-RRB1 rear rack rail kit\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh gain range\u003c\/strong\u003e — Gain adjusts from 45 to 75 dB for distant or low-output microphones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-noise design\u003c\/strong\u003e — Low noise and distortion suit surveillance and broadcast pickup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo outputs\u003c\/strong\u003e — Two outputs provide +4 dBu balanced or -10 dBV unbalanced levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhantom capability\u003c\/strong\u003e — Filtered 24 Vdc phantom supports condenser microphones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF-filtered inputs\u003c\/strong\u003e — Input filtering helps reject radio frequency interference.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025796755692,"sku":"STM-3","price":242.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/stm-3.jpg?v=1793583958","url":"https:\/\/creationnetworks.net\/products\/rdl-stm-3","provider":"Creation Networks","version":"1.0","type":"link"}