SKU: 61837944190

RDL DDB-RN31 Wall Mounted Bi Directional Microphone Line with Dante Interface - 4x4

Sale price$566.10 Regular price$629.00
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Description

RDL DDB-RN31 Wall Mounted Bi Directional Microphone Line with Dante Interface - 4x4The DDB RN31 is a complete wall mounted Dante audio network interface. It features two XLR mic or line inputs, one stereo Mini jack line input, left and right RCA jack inputs and one stereo Mini jack line output on the front panels, plus two line outputs on a rear panel detachable terminal block. The module is configured and adjusted using RDL CONSOLE or other network control software. The DD RN31 fits a standard US dual gang electrical box or an RDL

The DDB-RN31 is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs, one stereo Mini-jack line input, left and right RCA jack inputs and one stereo Mini-jack line output on the front panels, plus two line outputs on a rear-panel detachable terminal block. The module is configured and adjusted using RDL CONSOLE or other network control software. The DD-RN31 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-RN31 is PoE powered, and is available in multiple finishes with optional customized graphics.

Mic/Line to network section

The two XLR inputs are each converted to a separate Dante network transmit channel. Gain settings are software-selectable for both the mic and line input ranges to match condenser or dynamic mic levels and standard line levels. P48 phantom voltage may be software enabled when an input is set for mic level.

Line to network section

The Mini-jack and RCA jack left and right inputs each provide a network digital audio level of -18 dBFS for an unbalanced -10 dBV input. The control software allows each of these inputs to feed either or both of two Dante channels. Multiple sources fed to a single Dante output are summed.

Network to line section

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 -18 dBFS.

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 -18 dBFS.

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

The DDB-RN31 is a professional grade product with RDL mic preamplifiers for studio quality fidelity and low noise performance, coupled through XLR jacks housed in a steel chassis with dual powder-coated or stainless steel Decora® front plates.

The DDB-RN31’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.

Features

  • Dante Network Interface for Four Audio Inputs and Four Audio Outputs
  • One Mini-Jack, Two RCA Jacks and Two XLR Front-Panel Inputs
  • One Mini-Jack Front-Panel Output; Two Balanced Outputs on Rear-Panel Terminal Block
  • Module is Configured and Adjusted Using Network Control Software
  • Converts Two Standard XLR Mic or Line Audio Sources to Dante Network Channels
  • Each Input Gain is Selected by Software
  • Mic Gain: 35 dB, 42 dB or 59 dB
  • Line Gain: Unity or 12 dB
  • 48 V Mic Phantom (P48) Selected by Software
  • Each Mini-Jack and RCA -10 dBV Input May Feed One or Two Dante Network Channels
  • Converts Four Dante Network Audio Signals to Line Level
  • Mini-Jack -10 dBV Stereo Output from Two Specific Dante Channels
  • Rear Panel Balanced Outputs from Two Specific Dante Channels
  • Each Rear Panel +4 dBu Output Equipped with Software Controlled Attenuator in 1 dB Steps
  • 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

Specifications

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: -18 dBFS = +4 dBu
Reference Level: 0 dBFS = +22 dBu
Mic/Line Inputs to Network Interface

Inputs (2): XLR (female)
Gain: Mic: 35 dB (LOW), 42 dB (MED), 59 dB (HIGH); Line: Unity (NORM), 12 dB (HIGH)
Input Level (for +4 dBu/-18 dBFS): Mic: -31 dBu (LOW), -38 dBu (MED), -55 dBu (HIGH); Line: +4 dBu (LOW), -8 dBu (HIGH)
Input Level (maximum): Mic: -14 dBu (LOW), -21 dBu (MED), -38 dBu (HI); Line: +23 dBu (LOW), +10 dBu (HIGH)
Input Impedance: > 1.2 kΩ
Phantom Power: P48, 48 Vdc, software-selectable
Standard for Phantom: IEC 61938: 2013
Selectors per input (2): Phantom, Gain, software-selectable
Frequency Response: 20 Hz to 20 kHz (± 0.5 dB)
Equivalent Input Noise: < -128 dBu (59 dB gain); < -130 dBu A-Weighted
Noise below -18 dBFS (20 to 20 kHz): Mic: < -88 dB (LOW), < -82 dB (MED), < -68 dB (HIGH); Line: < -88 dB (NORM), < -88 dB (HIGH)
THD+N: < 0.1% (20 Hz to 20 kHz, +4 dBu/-18 dBFS)
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)
Inputs (4): Mini-jack Stereo (2, L and R); RCA jacks (2, L and R)
Input Level (for +4 dBu/-18 dBFS): -10 dBV nominal
Input Level (maximum): +8 dBV
Input Impedance: > 50 kΩ
Selectors: Stereo (L and R)/Mono (summed), software-selectable
Frequency Response: 20 Hz to 20 kHz (± 0.2 dB)
Noise below -18 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/-18 dBFS); 0.01% at 1 kHz (typ)
Outputs (4): Balanced, detachable terminal block (2); Unbalanced, Mini-jack (2, L and R)
Output Level (operating): +4 dBu (nominal) balanced, software adjustable in 1 dB steps; -10 dBV (nominal) unbalanced
Output Level (maximum): +22 dBu balanced; +8 dBV unbalanced
Output Impedance: 150 Ω balanced, 100 Ω unbalanced
Frequency Response: 20 Hz to 20 kHz (± 0.5 dB)
THD+N: < 0.05%
Noise: < -88 dB (bal., below +4 dBu); < -106 (bal., below +22 dBu); < -90 dB (unbal., below -10 dBV)
Crosstalk: < -70 dB (bal., 20 Hz to 20 kHz); < -80 dB (unbal., 20 Hz to 20 kHz)
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
Package Type: Cardboard Box
Package Dimensions: 3.625 x 4.625 x 2.125 in.
Shipping Weight: 0.92 lbs.
WEEE weight: 0.765 lbs.
Tariff code: 8543.70.9100
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61837944190

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4.8 ★★★★★
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WomanBehindTheMic
Phoenix, US
★★★★★ 5
100% worth it - I recommend to EVERYONE
I've seen coworkers and instructors using folding screens behind them for video calls since the pandemic started, and I finally gave in and purchased this one. I freaking LOVE it. I love that I can be on a video call and not have to worry about the angle of my laptop or having people 'in' my home while I'm at work. It's so nice. I may eventually buy and deconstruct a wall hanging to create some colorful fabric panels instead of the brown, but (and I say this as NOT a brown fabric-lover) the brown looks pretty nice. It's a very dark brown, and it serves as completely neutral while still feeling a bit warm. - No need for tools to assemble, even though it says screwdriver. - One thing: I thought it would fold up flat, and it does NOT fold up flat. Important to know. I just keep it folded up into a 16.5" (grabbed a tape measure to check) square column by my desk and unfold whenever I have video conferences. If you can't tell, I really like having this thing around. 100% recommend and would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2021
R
Verified Purchase
riknik
Boise, US
★★★★★ 4
it's a utility screen
Color: Black, Size: 3-Panel
It's a basic, utilitarian screen. It's what I expected it to be. Assembly isn't hard, but it does require two people when stretching the fabric between the poles. I got it to use in a closet to separate the water heater from the washer/dryer, so it'll be perfect for that. Pros: it's opaque and tall (my 6'4" husband can't see over it unless he is standing against it) and I like the ability for the three pieces to stand separately of each other. Cons: it's flimsy. It wobbles and will tip over easily.
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Reviewed in the United States on December 9, 2022
J
Verified Purchase
Jane Gios
Boise, US
★★★★★ 5
Great for the price
The item is great bit I wish it were a bit more sturdy and it folded flat. It folds into a square so it does take up some room when it's not in use.
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Reviewed in the United States on April 17, 2021
K
Verified Purchase
K. Torrance
Lake Worth, US
★★★★★ 1
Cheap, screw holes don't line up, screen is to short, and bars take WD-40 and a mallet
This has been my worst purchase on Amazon ever. DO NOT BUY. My first issue was that bars #4 and #5 would not go together, I ended up buying WD-40 and a mallet and that kind of got them together. Now I went to but the screen on (which is almost see thought) and the screen is to short. I can't attached the bottom bar to the tall bar. The screw hole is in the wrong spot, so the screen is not secure. No amount of pulling on the screen will make it grown .25" longer. Since I can't get the bars secure the walls are not steady and fall over easily. The feet did go together very nice. I can't return them according to Amazons policy. I bought 2 sets. I'm not going to try to build the other set I have. And I can't take apart the first set, since the bars are so tightly together. Also the polls have rust on them.
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Reviewed in the United States on December 10, 2023
R
Verified Purchase
Rick
Pawtucket, US
★★★★★ 3
Very Poor Built Quality
Color: Black, Size: 3-Panel
They use cheap tarp like cloth that you might find on a tent, so it is not suitable as a teleconferencing background without blur applied. The legs are flimsy and lack rubber feet, so it will scratch floors. The tubing is flimsy and very hard to move and adjust. This is only good if you are setting it up somewhere like a gym or a garage.
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Reviewed in the United States on January 12, 2025

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