{"product_id":"rdl-ru-mlb2","title":"RDL RU-MLB2 – 2x2 Mic\/Line Dante Interface, Auto Gain","description":"\u003ch2\u003eWhat is the RDL RU-MLB2?\u003c\/h2\u003e\u003cp\u003eThe RDL RU-MLB2 is a RACK-UP bidirectional Dante interface that converts two microphone or line sources to Dante and two Dante channels to balanced line outputs. Automatic microphone gain means no user or installer gain adjustment is needed when microphones change. It is a straightforward way to connect wired microphones, mixers and amplifiers to a Dante network.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/ru-mlb2.jpg\" alt=\"RDL RU-MLB2 mic\/line Dante interface\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eEach input has a rear-panel selector that the installer sets to mic or line. In the mic position the balanced input provides P48 phantom power to the microphone jack. Connecting a dynamic microphone sets the preamplifier gain to 60 dB, while a condenser microphone sets it to 40 dB, and the automatic gain setting stays active so users can swap microphones without adjustment. In the line position, the inputs accept unbalanced -10 dBV or balanced +4 dBu sources with more than 18 dB of headroom. A front-panel signal LED shows audio on each input. On the output side, two Dante channels are converted to balanced line outputs delivering +4 dBu for -18 dBFS network audio, with crosstalk below the noise floor. Conversion is 24-bit with RDL analog filtering, and LEDs show network sync. The RU-MLB2 runs from an external 24 Vdc supply; RDL recommends its PS-24AS (USA) or \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ps-24ax\"\u003ePS-24AX\u003c\/a\u003e (international) 24 Vdc supply. RDL also offers the RU-MLB2P with PoE operation. The module mounts in a rack or on a surface with RDL RACK-UP accessories such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ru-hra1\"\u003eRU-HRA1 10.4-inch rack mount\u003c\/a\u003e, \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-rc-1ur\"\u003eRC-1UR 19-inch universal rack chassis\u003c\/a\u003e, \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ru-sma1\"\u003eRU-SMA1 surface mounting plate\u003c\/a\u003e and \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ru-br1\"\u003eRU-BR1 under-surface bracket\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x2 Dante interface\u003c\/strong\u003e — Two mic\/line inputs to Dante and two Dante channels to line outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic mic gain\u003c\/strong\u003e — 40 dB for condenser and 60 dB for dynamic microphones with no adjustment needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP48 phantom\u003c\/strong\u003e — Phantom power is provided on each input set for mic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMic or line inputs\u003c\/strong\u003e — Each input is switch-selectable, and line mode accepts -10 dBV or +4 dBu.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional outputs\u003c\/strong\u003e — +4 dBu balanced outputs with more than 18 dB headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack or surface mount\u003c\/strong\u003e — Works with RDL RACK-UP mounting accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere is it typically used?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConference rooms and boardrooms\u003c\/li\u003e\n\u003cli\u003eTraining rooms and classrooms\u003c\/li\u003e\n\u003cli\u003eAuditoriums and multi-purpose rooms\u003c\/li\u003e\n\u003cli\u003eHouses of worship\u003c\/li\u003e\n\u003cli\u003eGovernment and commercial facilities\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch\"\u003e\u003ctable border=\"1\" cellpadding=\"6\" style=\"border-collapse:collapse;width:100%;min-width:300px;table-layout:fixed;border-color:#ddd\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:44%\"\u003e\n\u003ccol style=\"width:56%\"\u003e\n\u003c\/colgroup\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eNetwork Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRJ45 with Link and Speed indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eDigital Audio Ethernet Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDante\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eTransmission Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eSample Rates Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1 kHz, 48 kHz (default)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eBit Depth Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eAudio Operating Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-18 dBFS = +4 dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" bgcolor=\"#f5f5f5\"\u003e\u003cstrong\u003eMic Inputs\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInputs (2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBalanced, detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic; 40 dB for condenser mics, 60 dB for dynamic mics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInput Level for +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e56 dBu (dynamic), -36 dBu maximum; -36 dBu (condenser), -19 dBu maximum (unclipped), -14 dBu maximum (soft clipped)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 1 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003ePhantom Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eP48, 48 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eStandard for Phantom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEC 61938: 2013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 Hz to 20 kHz (± 0.5 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eNoise below +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -70 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eCMRR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 70 dB (50 to 120 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eCrosstalk\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 70 dB (20 to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" bgcolor=\"#f5f5f5\"\u003e\u003cstrong\u003eLine Inputs\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInputs (4)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBalanced, detachable terminal block (2); Unbalanced, detachable terminal block (2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInput Level for +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+4 dBu (balanced); -10 dBV (unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 20 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 Hz to 20 kHz (± 0.5 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eNoise below +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -75 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eCMRR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 60 dB (50 Hz to 120 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eCrosstalk\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 75 dB (1 kHz, any line to any mic channel), \u0026lt; 70 dB (20 to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eHeadroom above +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 18 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" bgcolor=\"#f5f5f5\"\u003e\u003cstrong\u003eNetwork to Line Level Interface Section\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eOutputs (2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBalanced, detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eOutput Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+4 dBu (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 Ω balanced; 75 Ω unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 Hz to 20 kHz (± 0.5 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eNoise below +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -80 dB (output active); \u0026lt; -95 dB (outputs muted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eCrosstalk\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 85 dB (20 Hz to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eHeadroom above +4 dBu\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 18 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eSelectors (2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMIC or LINE (rear panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eIndicators (9)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower In (1); Output Signal LEDs (2); Input Signal LEDs (2); Network Sys and Sync (2), Ethernet Link and Speed (2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003ePower Connections (2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Jack; Detachable Terminal Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eAmbient Operating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32° F to 104° F (0° C to 40° C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003ePower Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 Vdc @ 175 mA plus connected phantom loads, or PoE (RU-MLB2P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003ePoE (RU-MLB2P)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass 0, IEEE 802.3af\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.8\" (15 cm) W; 1.7\" (4.3 cm) H; 5.2\" (13.2 cm) D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.774 lbs. (RU-MLB2); 1.799 lbs. (RU-MLB2P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow does automatic microphone gain work?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe RU-MLB2 sets 60 dB of gain when a dynamic microphone is connected and 40 dB for a condenser microphone, and this stays active so no adjustment is needed when microphones are changed.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes the RU-MLB2 support PoE?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe RU-MLB2 runs from an external 24 Vdc supply. RDL offers the RU-MLB2P version for PoE operation.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat power supply should I use?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e24 Vdc at 175 mA plus connected phantom loads. RDL recommends the PS-24AS (USA) or \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ps-24ax\"\u003ePS-24AX\u003c\/a\u003e (international).\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan I use line-level sources?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Set the input selector to line to accept -10 dBV unbalanced or +4 dBu balanced sources.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat warranty does the RU-MLB2 carry?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan Creation Networks help design and commission the system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Our team handles networked audio design, equipment selection, installation and commissioning for commercial projects nationwide. Call (888) 230-3661 to discuss your project.\u003c\/p\u003e\u003c\/details\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025749274860,"sku":"RU-MLB2","price":733.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/ru-mlb2.jpg?v=1793583326","url":"https:\/\/creationnetworks.net\/products\/rdl-ru-mlb2","provider":"Creation Networks","version":"1.0","type":"link"}