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RDL DD-BN2ML 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface (White)

RDL DD-BN2ML 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface (White)
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RDL DD-BN2ML Overview

The white DD-BN2ML 2 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface from RDL is a complete wall-mounted Dante audio network interface. It features one XLR mic or line input and one mono-summed mini-jack line input on the front panels, plus two line outputs on a rear-panel detachable terminal block. Special software is not required to configure the DD-BN2ML. The 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. The mini-jack input accepts mono or stereo unbalanced line-level sources that are summed to mono. Each rear-panel output provides a switch to set the output to balanced professional or unbalanced consumer level.

The DD-BN2ML 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 XLR input is converted to feed one 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 summed to mono to feed one Dante network transmit channel. This input provides a network digital audio level of -20 dBFS for an unbalanced -10 dBV input.

The 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-BN2ML. AMS audio connectors include RCA, mini, and XLR jacks. The output plate may be located together with the DD-BN2ML in a triple gang box or may be mounted remotely in a single box.

The valid PoE power and synchronization to the Dante network are indicated by green LEDs visible from the front of the unit. The DD-BN2ML 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
XLR and mini-jack front panel inputs and outputs on rear panel terminal block
Converts one mic or line and one consumer line audio source to Dante network channels
Converts two Dante network audio signals to line level
Special software not required for module setup
XLR input is switch selectable for mic or line
Switch-selectable mic gain: 40, 48, or 62 dB
Switch-selectable 48 V mic phantom power (P48)
Switch-selectable line gain: Unity, 12, or 19 dB
Mini-jack -10 dBV input is summed to mono
Each output is switch selectable for balanced +4 dBu or unbalanced -10 dBV
24-bit analog to digital and digital to analog conversion
RDL analog filtering for improved audio performance
Made in the USA
UPC: 813721016836


Network ConnectorsRJ45 with link and speed indicators
Ethernet ProtocolDigital Audio: Dante
Transmission Rate100 Mb/s
Sample Rates44.1 kHz, 48 kHz (default)
Bit Depth24 bits
Operating LevelAudio Operating Level: -20 dBFS = +4 dBu
Reference Level0 dBFS = +24 dBu
Microphone Inputs
InputsXLR (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 Hz to 120 Hz)
CrosstalkBelow Noise Floor: (20 Hz to 20 kHz at operating level, any input to any input, maximum mic gain)
Headroom20 dB
Line Inputs
InputMini-jack stereo (left and right summed to mono)
Input Level+4 dBu/-20 dBFS: -10 dBV nominal
Maximum: +10 dBV
Input Impedance> 50 kOhms
Frequency Response20 Hz to 20 kHz (±0.2 dB)
NoiseBelow -20 dBFS (20 to 20 kHz): < -85 dB
THD+N< 0.05% (20 Hz to 20 kHz, +4 dBu/-20 dBFS)
0.01% at 1 kHz (typ)
Headroom20 dB
Line Outputs
OutputsBalanced, detachable terminal block
Output LevelOperating: +4 dBu (nominal) balanced, -10 dBV (nominal) unbalanced, switch-selectable
Maximum: +24 dBu balanced, +10 dBV unbalanced
Output Impedance150 Ohms balanced
2.5 kOhms unbalanced
Frequency Response20 Hz to 20 kHz (±0.5 dB)
THD+N< 0.1%
THD< 0.01% (1 kHz)
Noise< -80 dB (below +4 dBu or -10 dBV)
< -100 (below +24 dBu)
CrosstalkBelow Noise Floor (20 Hz to 20 kHz at operating level, output to output)
HeadroomAbove +4 dBu or -10 dBV: 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 lb
Box Dimensions (LxWxH)5 x 4.5 x 2.75"

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