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Electronics > Audio > Professional Audio > Professional Audio Accessories > Radio Design Labs RDL-RUMLB4P Mic/Line Bi-Directional Network Interface, Converts Four Standard Mic or Line Audio Sources to Dante Network Channels, Each Input is Switch-Selectable for Mic or Line, No User or Installer Gain Adjustments are Required, Automatic Microphone Gain of 40 dB for Condenser Mics and 60 dB for Dynamic Mics, P48 Phantom is Provided on Each Microphone Input, Front-Panel Signal LED for Each Audio Input (RUMLB4P RU-MLB4P RU-MLB4P BTX)
Radio Design Labs RDL-RUMLB4P Mic/Line Bi-Directional Network Interface, Converts Four Standard Mic or Line Audio Sources to Dante Network Channels, Each Input is Switch-Selectable for Mic or Line, No User or Installer Gain Adjustments are Required, Automatic Microphone Gain of 40 dB for Condenser Mics and 60 dB for Dynamic Mics, P48 Phantom is Provided on Each Microphone Input, Front-Panel Signal LED for Each Audio Input (RUMLB4P RU-MLB4P RU-MLB4P BTX)
Radio Design Labs RDL-RUMLB4P Mic/Line Bi-Directional Network Interface, Converts Four Standard Mic or Line Audio Sources to Dante Network Channels, Each Input is Switch-Selectable for Mic or Line, No User or Installer Gain Adjustments are Required, Automatic Microphone Gain of 40 dB for Condenser Mics and 60 dB for Dynamic Mics, P48 Phantom is Provided on Each Microphone Input, Front-Panel Signal LED for Each Audio Input (RUMLB4P RU-MLB4P RU-MLB4P BTX)
SKU: RUMLB4P
Brand: Radio Design Labs
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Radio Design Labs RDL-RUMLB4P Mic/Line Bi-Directional Network Interface, Converts Four Standard Mic or Line Audio Sources to Dante Network Channels, Each Input is Switch-Selectable for Mic or Line, No User or Installer Gain Adjustments are Required, Automatic Microphone Gain of 40 dB for Condenser Mics and 60 dB for Dynamic Mics, P48 Phantom is Provided on Each Microphone Input, Front-Panel Signal LED for Each Audio Input, Converts Four Dante Network Audio Signals to Balanced Line Level, Line-Level Outputs Provide +4 dBu with more than than 18 dB Headroom
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General Information
Manufacturer Radio Design Labs
Manufacturer Part Number RDL-RUMLB4P
Product Name Mic/Line Bi-Directional Network Interface

Features
  • Interfaces Four Dante Inputs and Four Dante Outputs
  • Converts Four Standard Mic or Line Audio Sources to Dante Network Channels
  • Each Input is Switch-Selectable for Mic or Line
  • No User or Installer Gain Adjustments are Required
  • Automatic Microphone Gain of 40 dB for Condenser Mics and 60 dB for Dynamic Mics
  • P48 Phantom is Provided on Each Microphone Input
  • Line-Level Inputs Accept Unbalanced -10 dBV or Balanced +4 dBu Signals with > 18 dB Headroom
  • Front-Panel Signal LED for Each Audio Input
  • Converts Four Dante Network Audio Signals to Balanced Line Level
  • Line-Level Outputs Provide +4 dBu with > 18 dB Headroom
  • Signal LEDs Indicate Audio for Each of the Received Network Signal Channels
  • High Resolution 24 Bit Analog to Digital and Digital to Analog Conversion
  • Legendary RDL Analog Filtering Enhances Superb Audio Performance
  • LED Indicators Show Network Sync Status
  • Normal or Hot-Standby Operation from PoE (Model RU-MLB4P)
  • Equipped for Rack Mounting or Surface Mounting

Specifications
Network Connector RJ45 with Link and Speed indicators
Digital Audio Ethernet Protocol Dante
Transmission Rate 100 Mbps
Sample Rates Supported 44.1 kHz, 48 kHz (default)
Bit Depth Supported 24 bits
Audio Operating Levels -18 dBFS = +4 dBu
Mic/Line Inputs to Network Interface Section
Mic Inputs
Inputs (4) Balanced, detachable terminal block
Gain Automatic; 40 dB for condenser mics, 60 dB for dynamique mics
Input Level for +4 dBu -56 dBu (dynamic), -36 dBu maximum; -36 dBu (condenser), -19 dBu maximum (unclipped), -14 dBu maximum (soft clipped)
Input Impedance > 1 kΩ
Phantom Power P48, 48 Vdc
Standard for Phantom IEC 61938
Frequency R-esponse 20 Hz to 20 kHz (0.5 dB)
THD+N < 0.1%
Noise below +4 dBu < -70 dB
CMRR > 70 dB (50 Hz to 120 Hz)
Crosstalk < 70 dB (20 Hz to 20 kHz)
Line Inputs
Inputs (8) Balanced, detachable terminal block (4); Unbalanced, detachable terminal block (4)
Input Level for +4 dBu +4 dBu (balanced); -10 dBV (unbalanced)
Input Impedance > 20 kΩ
Frequency R-esponse 20 Hz to 20 kHz (0.5 dB)
THD+N < 0.1%
Noise below +4 dBu < -75 dB
CMRR > 60 dB (50 Hz to 120 Hz)
Crosstalk < 75 dB (1 kHz, any line to any mic channel), < 70 dB (20 Hz to 20 kHz)
Headroom above +4 dBu > 18 dB
Network to Line Level Interface Section
Outputs (4) Balanced, detachable terminal block
Output Level +4 dBu (nominal)
Output Impedance 150 Ω balanced; 75 Ω unbalanced
Frequency R-esponse 20 Hz to 20 kHz (0.5 dB)
THD+N < 0.05%
Noise below +4 dBu < -80 dB (output active); < -95 dB (outputs muted)
Crosstalk < 85 dB (20 Hz to 20 kHz)
Headroom above +4 dBu > 18 dB
Selectors (4) MIC or LINE (rear panel)
Indicators (13) Power In (1); Output Signal LEDs (4); Input Signal LEDs (4); Network Sys and Sync (2), Ethernet Link and Speed (2)
Power Connections (2) Power Jack; Detachable Terminal Block
Ambient Operating Environment 0C to 40C
Power Requirement 24 Vdc @ 180 mA plus connected phantom loads, or PoE (RU-MLB4P)
PoE (RU-MLB4P) Class 0, IEEE 802.3af
Dimensions 5.8" (15 cm) W; 1.7" (4.3 cm) H; 5.2" (13.2 cm) D
Package Type Cardboard Box
Package Dimensions 6 x 6 x 2.625 in.
Shipping Weight 1.805 lbs. (RU-MLB4); 1.805 lbs. (RU-MLB4P)
WEEE weight 1.545 lbs. (RU-MLB4); 1.545 lbs. (RU-MLB4P)

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*This item is BRAND NEW - not refurbished. It comes with all manufacturer supplied accessories, and full manufacturer's USA warranty.
*** DISCLAIMERS: 1) Availability is not always guaranteed: Please call or email us to double-check stock before placing your order. We ship from our inventory and also drop-ship from hundreds of suppliers. We try very hard to show only available products but sometimes products sell out before we can update the product webpage.  2) Some information may have been supplied by 3rd Party Content Suppliers: We are not responsible for Data or Image errors.  3) We do not offer Installation, Training or Technical Support on this product.***

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