{"product_id":"rdl-st-ma2","title":"RDL ST-MA2 – 2 W Mono Monitor Amplifier with Muting","description":"\u003ch2\u003eWhat is the RDL ST-MA2?\u003c\/h2\u003e\n\u003cp\u003eThe RDL ST-MA2 is a compact 2 W mono audio monitor amplifier with control inputs that mute or reduce its output. It typically drives a small tabletop or overhead monitor speaker in conference rooms, boardrooms, courtrooms and public forum panels.\u003c\/p\u003e\n\u003ch2\u003eHow does it work?\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/st-ma2.jpg\" alt=\"RDL ST-MA2 2 W Mono Monitor Amplifier with Muting\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe line-level input may be wired balanced or unbalanced, and the output drives standard speakers from 4 to 45 Ω. Normal gain is preset with a trimmer, and two independent control inputs, activated by connecting to ground, select 3 dB or 6 dB of attenuation or full muting. Switching takes less than 50 µs, and muted attenuation exceeds 90 dB at 1 kHz, which suits automatic mixing systems built from other RDL modules. The module runs from a ground-referenced 24 Vdc supply at 200 mA for rated output. RDL lists STICK-ON mounting accessories such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-sr-4\"\u003eSR-4\u003c\/a\u003e and \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-str-19a\"\u003eSTR-19A\u003c\/a\u003e for this module.\u003c\/p\u003e\n\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 W monitor output\u003c\/strong\u003e — The amplifier delivers 1.75 W RMS continuous and 2 W RMS maximum into 8 Ω and drives 4 Ω loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast, silent muting\u003c\/strong\u003e — Control inputs mute the output in under 50 µs with more than 90 dB of attenuation at 1 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable attenuation steps\u003c\/strong\u003e — Two independent inputs select 3 dB or 6 dB of attenuation for conferencing and automatic mixing systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced or unbalanced input\u003c\/strong\u003e — The 20 kΩ bridging input accepts balanced or unbalanced line-level sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable gain\u003c\/strong\u003e — A trimmer on the module presets normal gain for the monitor speaker.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025746194668,"sku":"ST-MA2","price":123.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/st-ma2.jpg?v=1793583136","url":"https:\/\/creationnetworks.net\/products\/rdl-st-ma2","provider":"Creation Networks","version":"1.0","type":"link"}