{"product_id":"rdl-ru-lb4","title":"RDL RU-LB4","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe RU-LB4 modules are Dante audio network interface products compatible with line-level audio equipment inputs and outputs. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial\/industrial installations.\u003c\/p\u003e\u003cp\u003eAPPLICATION: The RU-LB4 is a high quality converter that provides professional line-level outputs from four Dante network received audio channels. It also converts four professional or consumer line-level sources to Dante network audio channels. \u003c\/p\u003e\u003cp\u003e\u003cu\u003eNetwork to Line Level Interface Section\u003c\/u\u003e\u003c\/p\u003e\u003cp\u003eThe RU-LB4 converts four Dante audio channels to balanced line level. Each output provides +4 dBu balanced for a network digital audio level of -18 dBFS. The professional output directly interfaces with other professional and commercial equipment without the need for additional gain. Crosstalk is below the noise floor between all outputs across the entire audio spectrum. The noise floor is better than 80 dB below operating level.\u003c\/p\u003e\u003cp\u003eOne front-panel green signal LED corresponds to each of the four Dante input channels. Received audio level is indicated on the variable-intensity LED indicator, facilitating setup when a networked computer is not connected at the module’s location.\u003c\/p\u003e\u003cp\u003e\u003cu\u003eLine Level to Network Interface Section\u003c\/u\u003e\u003c\/p\u003e\u003cp\u003eThe RU-LB4 converts four line-level audio sources to Dante networked digital audio channels. Each input is equipped with a front-panel gain trimmer and associated Dual-LED VU meter to facilitate optimal input gain adjustment. Each input supports the complete range of normal unbalanced -10 dBV and balanced +4 dBu line-level sources. Input gain adjusted according to the Dual-LED VU meter assures an operating level that preserves full headroom with the lowest noise floor.\u003c\/p\u003e\u003cp\u003eThe RU-LB4 is powered from an external 24 Vdc power supply, available separately. The RU-LB4P is equipped to operate from a PoE enabled network switch. The RU-LB4P will reserve power from the switch even while being powered from an external 24 Vdc supply. If PoE power and an external 24 Vdc supply are both feeding an RU-LB4P, the unit will run from the external supply and will seamlessly switch over to PoE power upon loss of the external supply.\u003c\/p\u003e\u003cp\u003eThe RU-LB4’s superior performance specifications make it ideally suited to the most demanding installations, and an exceptional value in commercial networked audio systems.\u003c\/p\u003e\u003cp\u003eThe RU-LB4 is constructed in a durable, professional all-metal enclosure suitable for free-standing, surface-mounted or rack-mounted operation. This full-featured product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. Built to last. Built to outperform.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConverts Standard Line-Level Audio Sources to Dante Network Channels\u003c\/li\u003e\n\u003cli\u003eLine-Level Inputs Accept Unbalanced -10 dBV or Balanced+4 dBu Signals with \u0026gt;18 dB Headroom\u003c\/li\u003e\n\u003cli\u003eFront-Panel Gain Adjustment with Dual-LED VU Meter for Each Audio Input\u003c\/li\u003e\n\u003cli\u003eConverts Four Dante Network Audio Signals to Balanced Line Level\u003c\/li\u003e\n\u003cli\u003eLine-Level Outputs Provide +4 dBu with \u0026gt;18 dB Headroom\u003c\/li\u003e\n\u003cli\u003eSignal LEDs Indicate Audio for Each of the Received Network Signal Channels\u003c\/li\u003e\n\u003cli\u003eInterfaces Four Dante Inputs and Four Dante Outputs\u003c\/li\u003e\n\u003cli\u003eHigh Resolution 24 Bit Analog to Digital and Digital to Analog Conversion\u003c\/li\u003e\n\u003cli\u003eLegendary RDL Analog Filtering Enhances Superb Audio Performance\u003c\/li\u003e\n\u003cli\u003eLED Indicators Show Network Sync Status\u003c\/li\u003e\n\u003cli\u003eNormal or Hot-Standby Operation from PoE (Model RU-LB4P)\u003c\/li\u003e\n\u003cli\u003eEquipped for Rack Mounting or Surface Mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"table1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Connector\u003c\/td\u003e\n\u003ctd\u003eRJ45 with Link and Speed indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Audio Ethernet Protocol\u003c\/td\u003e\n\u003ctd\u003eDante\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTransmission Rate: \u003cdiv class=\"spec_spacer\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"specifications\"\u003e100 Mbps\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Rates Supported\u003c\/td\u003e\n\u003ctd\u003e44.1 kHz, 48 kHz (default)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBit Depth Supported\u003c\/td\u003e\n\u003ctd\u003e24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Operating Levels\u003c\/td\u003e\n\u003ctd\u003e-18 dBFS = +4 dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\n\u003cbr\u003e\u003cb\u003eLine Inputs to Network Interface Section\u003c\/b\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs (4)\u003c\/td\u003e\n\u003ctd\u003eBalanced, detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Level for +4 dBu\u003c\/td\u003e\n\u003ctd\u003e-16 dBu to +12 dBu, +22 dBu maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 20 k?\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\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\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise below +4 dBu\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -80 dB \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCMRR\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\u003eCrosstalk\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\u003eHeadroom above +4 dBu\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 18 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\n\u003cbr\u003e\u003cb\u003eNetwork to Line Level Interface Section\u003c\/b\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs (4)\u003c\/td\u003e\n\u003ctd\u003eBalanced, detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level\u003c\/td\u003e\n\u003ctd\u003e+4 dBu (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e150 ? balanced; 75 ? unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\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\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise below +4 dBu\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\u003eCrosstalk\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\u003eHeadroom above +4 dBu\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 18 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicators (17)\u003c\/td\u003e\n\u003ctd\u003ePower In (1); Output Signal LEDs (4); Input Dual-LED VU Meters (8); Network Sys and Sync (2), Ethernet Link and Speed (2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connections (2)\u003c\/td\u003e\n\u003ctd\u003ePower Jack; Detachable Terminal Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Environment\u003c\/td\u003e\n\u003ctd\u003e0° C to 40° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e24 Vdc @ 140 mA plus connected loads, or PoE (RU-LB4P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoE (RU-LB4P)\u003c\/td\u003e\n\u003ctd\u003eClass 0, IEEE 802.3af\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\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\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eCardboard Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd\u003e6 x 6 x 2.625 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1.705 lbs. (RU-LB4); 1.73 lbs. (RU-LB4P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEEE weight\u003c\/td\u003e\n\u003ctd\u003e1.445 lbs. (RU-LB4); 1.47 lbs. (RU-LB4P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff code\u003c\/td\u003e\n\u003ctd\u003e8517.18.0050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":43895096475691,"sku":"RDL-RU-LB4","price":745.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/3019\/5243\/files\/rdl-ru-lb4-2__93583.1682436042.1280.1280.jpg?v=1775683986","url":"https:\/\/www.empirepro.com\/products\/rdl-ru-lb4","provider":"Empire Pro","version":"1.0","type":"link"}