• RDL DD-BN31 Bi-Directional Mic / Line Dante Interface
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RDL DD-BN31 BiDirectional Mic/Line Dante Interface

RDL DD-BN31 BiDirectional Mic/Line Dante Interface

SoundPro Item: 55775 | Part Number: 001-5710

$897.94
$1,197.26 $897.94
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MSRP: $1,197.26 | MAP: $897.94

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  • Dante Network Interface for Four Audio Inputs and Four Audio Outputs
  • One Mini-jack and Two XLR Front-Panel Inputs
  • One Mini-jack Front-Panel Output; Two Outputs on Rear-Panel Terminal Block
  • Converts Two Standard XLR Mic or Line Audio Sources to Dante Network Channels
  • Each XLR Input is Switch Selectable for Mic or Line
  • Switch-Selectable Mic Gain: 40 dB, 48 dB or 62 dB
  • Switch-Selectable 48 V Mic Phantom (P48)
  • Switch-Selectable Line Gain: Unity, 12 dB or 19 dB
  • Mini-jack -10 dBV Input is Switch Selectable Stereo or Summed to Mono
  • Converts Four Dante Network Audio Signals to Line Level
  • Mini-jack -10 dBV Output is Switch Selectable Stereo or Mono (Left Channel)
  • Rear Panel Outputs Switch Selectable Balanced +4 dBu or Unbalanced -10 dBV
  • Special Software Not Required for Module Setup
  • Studio Quality, Low-Noise Performance
  • High Resolution 24 Bit Analog to Digital and Digital to Analog Conversion
  • Legendary RDL Analog Filtering Enhances Superb Audio Performance
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The DD-BN31 is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs, one stereo Mini-jack line input and one stereo Mini-jack line output on the front panels, plus two line outputs on a rear-panel detachable terminal block. Special software is not required to configure the DD-BN31. Each XLR input provides three switches that may be set from the front of the unit when the cover plate is not installed. One switch enables or disables P48 phantom for that input; the second switch selects the mic or line gain range; the third switch sets the gain. The Mini-jack input provides a switch to configure the input for stereo or summed mono. The Mini-jack output provides a switch to configure the output for stereo or left-channel mono. Each rear-panel output provides a switch to set the output to balanced professional or unbalanced consumer level. The DD-BN31 fits a standard US dual-gang electrical box or an RDL WB-2 back box for installations in thinner European or equivalent walls. The DD-BN31 is PoE powered, and is available in multiple finishes with optional customized graphics.

The two XLR inputs are each converted to a separate Dante network transmit channel. Three gain settings are switch-selectable for both the mic and line input ranges to match condenser or dynamic mic levels and standard line levels.

The Mini-jack left and right inputs are each converted to a separate Dante network transmit channel. Each input provides a network digital audio level of -20 dBFS for an unbalanced -10 dBV input. The input is equipped with a selector to sum the left and right Mini-jack inputs. The summed signal feeds both Dante transmit channels.

Two Dante audio channels are converted to unbalanced line level to feed the front-panel Mini-jack. Each channel provides -10 dBV unbalanced for a network digital audio level of -20 dBFS. The left and right Mini-jack channels are normally fed from Dante receive channels 3 and 4 (stereo). The Mini-jack output is equipped with a selector to feed both output channels from Dante receive channel 3 (mono). This selector may be set from the front of the unit when the cover plate is not installed.

Two Dante audio channels are converted to balanced line level on the rear-panel detachable terminal block. Each output provides +4 dBu balanced for a network digital audio level of -20 dBFS. Each output is equipped with a selector to unbalance the audio and attenuate the level to -10 dBV. These switches are located on the top of the chassis and are set by the installer prior to mounting the unit.

The rear-panel outputs are intended for connection to RDL AMS connectors mounted in Decora-style plates that match the DD-BN31. AMS audio connectors include RCA, Mini and XLR jacks. The output plate may be located together with the DD-BN31 in a triple gang box or may be mounted remotely in a single box.

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Specifications

Dimensions
Bit Depth Supported
24 bits
Dimensions
3.52" (8.94 cm) W; 4.11" (10.44 cm) H; 2.09" (5.31 cm) D
Package Dimensions
3.625 x 4.625 x 2.125 in.
Weight
Shipping Weight
1.045 lbs.
WEEE Weight
0.89 lbs.
Electrical
Standard for Phantom
IEC 61938: 2013
THD+N
< 0.1% (20 Hz to 20 kHz, +4 dBu/-20 dBFS); 0.015% at 1 kHz (typ)
Power Requirement
PoE Class 0, IEEE 802.3af
Audio
Digital Audio Ethernet Protocol
Dante
Audio Operating Level
-20 dBFS = +4 dBu
Input Impedance
> 2.5 kΩ (MIC); > 5 kΩ (LINE)
Phantom Power
P48, 48 Vdc, switch-selectable
Frequency Response
20 Hz to 20 kHz (± 0.5 dB)
Crosstalk
Below Noise Floor (20 Hz to 20 kHz at operating level, any input to any input, max. mic gain)
Output Impedance
150 Ω balanced; 500 Ω unbalanced
THD
< .01% (1 kHz)
Connectivity
Network Connector
RJ45 with Link and Speed indicators
Inputs (2)
XLR (female)
Input Level (for +4 dBu/-20 dBFS)
Mic: -36 dBu (LO), -44 dBu (MED), -58 dBu (HI); Line: +4 dBu (LO), -8 dBu (MED), -15 dBu (HI)
Input Level (maximum)
Mic: -16 dBu (LO), -24 dBu (MED), -38 dBu (HI); Line: +24 dBu (LO), +12 dBu (MED), +5 dBu (HI)
Selectors per Input (3)
Phantom, Mic/Line, Gain
Equivalent Input Noise
-130 dBu (62 dB gain); -132 dBu A-Weighted
Outputs (4)
Balanced, detachable terminal block (2); Unbalanced, Mini-jack (2, L and R)
Output Level (operating)
+4 dBu (nominal) balanced; -10 dBV unbalanced
Output Level (maximum)
+24 dBu balanced; +10 dBV unbalanced
Construction
Gain
Mic: 40 dB (LO), 48 dB (MED), 62 dB (HI); Line: Unity (LO), 8 dB (MED), 19 dB (HI)
General
Transmission Rate
100 Mbps
Sample Rates Supported
44.1 kHz, 48 kHz (default)
Reference Level
0 dBFS = +24 dBu
Noise Below -20 dBFS (20 to 20 kHz)
Mic: < -72 dB (LO), < -72 dB (MED), < -68 dB (HI); Line: < -72 dB (LO), < -72 dB (MED), < -70 dB (HI)
Headroom
20 dB
Selectors
Stereo (L and R)/Mono (summed)
Noise
< -78 dB (bal., below +4 dBu); < -98 (bal., below +24 dBu); < -75 dB (unbal., below -10 dBV)
Headroom Above +4 Dbu Or -10 dBV
20 dB
Indicators (4)
Ethernet Link and Speed (2, rear panel); Sync and Power (2, front panel)
Ambient Operating Environment
0° C to 40° C; 30° C maximum recommended
Specification Conditions
Gain/Level: ± 1 dB; Source termination: 150 Ω; A to D values measured in digital domain
Audio Performance
CMRR
> 65 dB (50 Hz to 120 Hz)

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