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RDL DDB-BN22 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface (Black)

RDL DDB-BN22 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface (Black)
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RDL DDB-BN22 Overview

The black DDB-BN22 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface from RDL is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs and two XLR mic or line outputs on the front panels. Special software is not required to configure the DDB-BN22. Each XLR input provides three switches that may be set from the front of the unit when the cover plate is not installed. The first switch enables or disables P48 phantom, second switch selects the mic or line gain range, and the third switch sets the gain. Each XLR output provides a switch to set the output to balanced professional line level or mic level.

The DDB-BN22 fits a standard US dual-gang electrical box or an RDL WB-2 back box for installations in thinner European or equivalent walls. It is PoE powered and is available 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 two Dante audio channels are converted to balanced line level on front panel XLR jacks. Each output provides +4 dBu balanced for a network digital audio level of -20 dBFS. Each output is equipped with a selector to set the output to line level or attenuate the output by 50 dB to mic level. These switches are located on the top of the chassis and are set by the installer prior to mounting the unit.

The valid PoE power and synchronization to the Dante network are indicated by green LEDs visible from the front of the unit. The DDB-BN22 features discrete mic preamplifiers for studio-quality fidelity and low-noise performance, coupled through metal XLR jacks housed in a stainless steel chassis with dual powder-coated Decora front plates.

Suitable for demanding applications and networked audio systems
Dante network interface for two audio inputs and two audio outputs
Inputs and outputs on XLR jacks on front panels
Converts two standard mic or line audio sources to Dante network channels
Converts two Dante network audio signals to mic or line level
Special software not required for module setup
Each input is switch-selectable for mic or line
Switch-selectable mic gain: 40, 48, or 62 dB
Switch-selectable 48 V Mic Phantom (P48)
Switch-selectable line gain: Unity, 12, or 19 dB
Each output is switch selectable for mic or line
24-bit analog to digital and digital to analog conversion
RDL analog filtering for improved audio performance
Made in the USA
UPC: 813721014719

RDL DDB-BN22 Specs

Network ConnectorsRJ45 with link and speed indicators
Ethernet ProtocolDigital Audio: Dante
Transmission Rate100 Mb/s
Sample Rates44.1 kHz, 48 kHz (default)
Bit Depth24-bit
Operating LevelAudio Operating Level: -20 dBFS = +4 dBu
Reference Level0 dBFS = +24 dBu
Line Inputs
Inputs2 x XLR (female)
GainMic: 40 dB (Lo), 48 dB (Med), 62 dB (Hi)
Line: Unity (Lo), 8 dB (Med), 19 dB (Hi)
Input Level+4 dBu/-20 dBFS:
Mic: -36 dBu (Lo), -44 dBu (Med), -58 dBu (Hi)
Line: +4 dBu (Lo), -8 dBu (Med), -15 dBu (Hi)

Mic: -16 dBu (Lo), -24 dBu (Med), -38 dBu (Hi)
Line: +24 dBu (Lo), +12 dBu (Med), +5 dBu (Hi)
Input Impedance> 2.5 kOhms (Mic)
> 5 kOhms (Line)
Phantom PowerP48, 48 VDC, switch-selectable
Standard for Phantom: IEC 61938: 2013
CAC SelectorsSelectors per Input: Phantom, Mic/Line, Gain
Frequency Response20 Hz to 20 kHz (±0.5 dB)
Equivalent Input Noise-130 dBu (62 dB gain)
-132 dBu A-Weighted
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)
THD+N< 0.1% (20 Hz to 20 kHz, +4 dBu / -20 dBFS); 0.015% at 1 kHz (typ)
CMRR> 65 dB (50 to 120 Hz)
CrosstalkBelow Noise Floor (20 Hz to 20 kHz at operating level, any input to any input, maximum mic gain)
Line Outputs
Outputs2 x XLR (male)
Output LevelOperating: +4¿dBu nominal Line level balanced; -45¿dBu nominal Mic level (into 150 Ohms)
Maximum: +24¿dBu Line level
Output Impedance150 Ohms balanced
Selector ControlsSelector Per Output: Mic/line
Frequency Response20 Hz to 20 kHz (±0.5¿dB)
THD+N< 0.1% (20 Hz to 20 kHz, +4 dBu / -20 dBFS)
0.015% at 1 kHz (typ)
THD< 0.01% (1 kHz)
Noise< -80¿dB (below +4¿dBu)
< -100 (below +24¿dBu)
CrosstalkBelow noise floor (20 Hz to 20 kHz at operating level, output to output)
HeadroomAbove +4¿dBu / -20¿dBFS: 20¿dB
IndicatorsEthernet Link and Speed (2, rear panel)
Sync and Power (2, front panel)
Operating Environment32 to 104°F / 0 to 40°C
86°F / 30°C (maximum recommended)
Power RequirementsPoE Class 0, IEEE 802.3af
Environmental ConditionsGain/Level: ±1 dB
Source Termination: 150 Ohms
A to D values measured in digital domain
Dimensions3.52 x 4.11 x 2.09" / 8.94 x 10.44 x 5.31 cm
WeightNot specified by the manufacturer
Packaging Info
Package Weight1.15 lb
Box Dimensions (LxWxH)4.9 x 4.3 x 2.4"

RDL DDB-BN22 Reviews

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