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RDL DDS-BN31 4 x 4 Wall-Mounted Bidirectional Mic/Line Dante Interface (Stainless Steel)

BH #RDDDSBN31 • MFR #DDS-BN31
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RDL DDS-BN31 4 x 4 Wall-Mounted Bidirectional Mic/Line Dante Interface (Stainless Steel)
Key Features
  • Converts 2 Mic/Line Signals to Dante
  • Converts 4 Dante Signals to Line Level
  • For Standard US Dual-Gang Electrical Box
  • 2 XLR-Female Mic/Line Inputs
The DDS-BN31 4 x 4 Wall-Mounted Bidirectional Mic/Line Dante Interface from RDL is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs, one stereo 3.5mm line input and one stereo 3.5mm 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 DDS-BN31. 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 for that input, second switch selects the mic or line gain range, and the third switch sets the gain. The 3.5mm input provides a switch to configure the input for stereo or summed mono. The 3.5mm 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.
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RDL DDS-BN31 Overview

The DDS-BN31 4 x 4 Wall-Mounted Bidirectional Mic/Line Dante Interface from RDL is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs, one stereo 3.5mm line input and one stereo 3.5mm 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 DDS-BN31. 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 for that input, second switch selects the mic or line gain range, and the third switch sets the gain. The 3.5mm input provides a switch to configure the input for stereo or summed mono. The 3.5mm 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 DDS-BN31 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 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 3.5mm inputs. The summed signal feeds both Dante transmit channels.

The 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 3.5mm channels are normally fed from Dante receive channels 3 and 4 (stereo). The 3.5mm 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.

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 DDS-BN31. AMS audio connectors include RCA, 3.5mm, and XLR jacks. The output plate may be located together with the DDS-BN31 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 DDS-BN31 features discrete mic preamplifiers for studio-quality fidelity and low-noise performance, coupled through metal XLR jacks housed in a stainless-steel chassis with stainless steel Decora front plates.

Suitable for demanding applications and networked audio systems
Dante network interface for four audio inputs and four audio outputs
One 3.5mm and two XLR front-panel inputs
One 3.5mm front-panel output and 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, 48, or 62 dB
Switch-Selectable 48V Mic Phantom (P48)
Switch-Selectable Line Gain: Unity, 12, 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
3.5mm -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
24-bit analog to digital and digital to analog conversion
RDL analog filtering for improved audio performance
Made in the USA
UPC: 813721016881

RDL DDS-BN31 Specs

Network Connectors
RJ45 with link and speed indicators
Ethernet Protocol
Digital Audio: Dante
Transmission Rate
100 Mb/s
Sample Rates
44.1 kHz, 48 kHz (default)
Bit Depth
24 bits
Operating Level
Audio Operating Level: -20 dBFS = +4 dBu
Reference Level
0 dBFS = +24 dBu
Microphone Inputs
Inputs
2 x XLR (female)
Gain
Mic: 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)

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 kOhms (Mic)
> 5 kOhms (Line)
Phantom Power
P48, 48 VDC, switch-selectable
Standard for Phantom: IEC 61938: 2013
CAC Selectors
Selectors per Input: 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, maximum mic gain)
Headroom
20 dB
Line Inputs
Input
Mini-jack stereo (2, L and R)
Input Level
+4¿dBu / -20¿dBFS: -10¿dBV nominal
Maximum: +10¿dBV
Input Impedance
> 50 kOhms
Selector Controls
Stereo (L and R) / Mono (summed)
Frequency Response
20 Hz to 20 kHz (±0.2¿dB)
Noise
Below -20¿dBFS (20 to 20 kHz): < -85¿dB
Crosstalk
< -85¿dB (1 kHz)
< -65¿dB (L into R, R into L, 20 Hz to 20 kHz)
THD+N
< 0.05% (20 Hz to 20 kHz, +4 dBu / -2 dBFS)
0.01% at 1 kHz (typ)
Headroom
20¿dB
Line Outputs
Outputs
Balanced, detachable terminal block (2)
Unbalanced, mini-jack (2, L and R)
Output Level
Operating: +4 dBu (nominal) balanced, -10 dBV unbalanced
Maximum: +24 dBu balanced, +10 dBV unbalanced
Output Impedance
150 Ohms balanced
500 Ohms unbalanced
Frequency Response
20 Hz to 20 kHz (±0.5 dB)
THD+N
< 0.1%
 
THD
< 0.01% (1 kHz)
Noise
< -78¿dB (bal., below +4¿dBu)
< -98 (bal., below +24¿dBu)
< -75¿dB (unbal., below -10¿dBV)
Crosstalk
Below noise floor (1 kHz)
< -60¿dB (bal., 20 Hz to 20 kHz)
< -80¿dB (unbal., 1 kHz), < -70¿dB (unbal., 20 Hz to 20 kHz)
Headroom
Above +4 dBu or -10 dBV: 20 dB
Indicators
Ethernet Link and Speed (2, rear panel)
Sync and Power (2, front panel)
Operating Environment
32 to 104°F / 0 to 40°C
86°F / 30°C (maximum recommended)
Power Requirements
PoE Class 0, IEEE 802.3af
Environmental Conditions
Gain/Level: ±1 dB
Source termination: 150 Ohms
A to D values measured in digital domain
Dimensions
3.52 x 4.11 x 2.09" / 8.94 x 10.44 x 5.31 cm
Weight
Not specified by the manufacturer

RDL DDS-BN31 Reviews

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