RDL DD-BN2ML

Overview

The DD-BN2ML 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. One switch enables or disables P48 phantom; the second switch selects the mic or line gain range; 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. The DD-BN2ML is PoE powered and is available in multiple finishes with optional customised 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.

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.

Valid PoE power and synchronization to the Dante network are indicated by green LEDs visible from the front of the unit.

The DD-BN2ML is a professional grade product with a discrete mic preamplifier for studio quality fidelity and low noise performance, coupled through a metal XLR jack housed in a stainless-steel chassis with dual powder-coated or stainless-steel Decora front plates.

The DD-BN2ML’s superior performance specifications make it ideally suited to the most demanding installations, and an exceptional value in commercial networked audio systems. This full-featured product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. Designed to outperform. Built to last.

Specifications

Mic/Line Inputs to Network Interface
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 Level	-20 dBFS = +4 dBu
Reference Level	0 dBFS = +24 dBu
Input	XLR (female)
Gain	Mic: 40 dB (LO), 48 dB (MED), 62 dB (HI); Line: Unity (LO), 8 dB (MED), 19 dB (HI)
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)
Input Impedance	> 2.5 kΩ (MIC); > 5 kΩ (LINE)
Phantom Power	P48, 48 Vdc, switch-selectable
Standard for Phantom	IEC 61938: 2013
Selectors for input (3)	Phantom, Mic/Line, Gain
Frequency Response	20 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)
Crosstalk	Below Noise Floor (20 Hz to 20 kHz at operating level, any input to any input, max. mic gain)
Headroom	20 dB
Line Input to Network Interface
Input	Mini-jack Stereo (left and right summed to mono)
Input Level (for +4 dBu/-20 dBFS)	-10 dBV nominal
Input Level (maximum)	+10 dBV
Input Impedance	> 50 kΩ
Frequency Response	20 Hz to 20 kHz (± 0.2 dB)
Noise below -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)
Headroom	20 dB
Network to Line Outputs
Outputs (2)	Balanced, detachable terminal block
Output Level (operating)	+4 dBu (nominal) balanced; -10 dBV (nominal) unbalanced, switch-selectable
Output Level (maximum)	+24 dBu balanced; +10 dBV unbalanced
Output Impedance	150 Ω balanced; 2.5 kΩ unbalanced
Frequency Response	20 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)
Crosstalk	Below Noise Floor (20 Hz to 20 kHz at operating level, output to output)
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
Power Requirement	PoE Class 0, IEEE 802.3af
Specification Conditions	Gain/Level: ± 1 dB; Source termination: 150 Ω; A to D values measured in digital domain
Dimensions	3.52” (8.94 cm) W; 4.11” (10.44 cm) H; 2.09” (5.31 cm) D
Mounting	Wall mount in North American dual electrical box (4 square deep recommended) or RDL WB-2U (international wall box) at elevation ≤ 2 m.
Package Type	Cardboard Box
Package Dimensions	3.625 x 4.625 x 2.125 in.
Shipping Weight	1.0 lbs.
WEEE weight	0.845 lbs.
Tariff code	8543.70.9100

Key Features

Dante Network Interface for Two Audio Inputs and Two Audio Outputs
XLR and Mini-jack Front-Panel Inputs; 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 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 Summed to Mono
Each Output is Switch Selectable for Balanced +4 dBu or Unbalanced -10 dBV
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