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Description
RDL DDB-BN22 Wall Mounted Bi Directional Microphone Line with Dante - 2x2The DDB BN22 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. One switch enables or disables P48 phantom; the second switch selects the mic or line gain range; the third
The DDB-BN22 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. One switch enables or disables P48 phantom; the second switch selects the mic or line gain range; 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. The DDB-BN22 is PoE powered and is available in multiple finishes 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.
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.
Valid PoE power and synchronization to the Dante network are indicated by green LEDs visible from the front of the unit.
The DDB-BN22 is a professional grade product with 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 or stainless-steel Decora front plates.
The DDB-BN22’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 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 dB, 48 dB or 62 dB
- Switch-Selectable 48 V Mic Phantom (P48)
- Switch-Selectable Line Gain: Unity, 12 dB or 19 dB
- Each Output is Switch Selectable for Mic or Line
- 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
| Input Impedance: | > 2.5 kΩ (MIC); > 5 kΩ (LINE) |
| Input Level (maximum): | Mic: -16 dBu (LO), -24 dBu (MED), -38 dBu (HI); Line: +24 dBu (LO), +12 dBu (MED), +5 dBu (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) |
| Inputs (2): | XLR (female) |
| Gain: | Mic: 40 dB (LO), 48 dB (MED), 62 dB (HI); Line: Unity (LO), 8 dB (MED), 19 dB (HI) |
|
Mic/Line Inputs to Network Interface |
|
| Reference Level: | 0 dBFS = +24 dBu |
| Bit Depth Supported: | 24 bits |
| Audio Operating Level: | -20 dBFS = +4 dBu |
| Sample Rates Supported: | 44.1 kHz, 48 kHz (default) |
| Transmission Rate: | 100 Mbps |
| Digital Audio Ethernet Protocol: | Dante |
| Network Connector: | RJ45 with Link and Speed indicators |
| Phantom Power: | P48, 48 Vdc, switch-selectable |
| Standard for Phantom: | IEC 61938: 2013 |
| Selectors per 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) |
|
Network to Mic/Line Outputs |
|
| Outputs (2): | XLR (male) |
| Output Level (operating): | +4 dBu nominal LINE level balanced; -45 dBu nominal MIC level (into 150 Ω) |
| Output Level (maximum): | +24 dBu LINE level |
| Output Impedance: | 150 Ω balanced |
| Selector per output: | Mic/Line |
| Frequency Response: | 20 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) |
| Crosstalk: | Below Noise Floor (20 Hz to 20 kHz at operating level, output to output) |
| Headroom above +4 dBu/-20 dBFS: | 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 |
| Package Type: | Cardboard Box |
| Package Dimensions: | 3.625 x 4.625 x 2.125 in. |
| Shipping Weight: | 1.09 lbs. |
| WEEE weight: | 0.935 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:
- 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
4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
The K2 SE is a great entry level printer. Don't let the naysayers get you down!
Set name: K2 SE
I bought the K2 SE because it was inexpensive and I wanted to get into 3D printing. I had a Creality laser engraver that worked well, so I figured I'd go with the brand I knew. I bought the additional enclosure because I was planning to use this in the garage where my wood shop is, and I wanted to keep some dust out.
I have been pushing this thing pretty hard for three months now and it has not so much as looked at me cross eyed. It takes everything I throw at it. The quality seems to be there, as nothing is wearing out. I have a little superlube oil and grease to keep up the maintenance, and I suspect any failures people report have been on unmaintained machines. If you're the type that drives your car without changing the oil, 3D printing is not for you.
A quick note on 3D printing, for the uninitiated. When you see the one and two star reviews for the K2 SE, make sure you read why the reviewer is leaving the low rating. "Doesn't come with filament" - if you're not buying a combo with filament, none of the printers on the market come with filament. "Makes bubbles and pops when printing" - this is wet filament and not the fault of the printer (dry your filament). 3D printing is not a set it and forget it proposition, at least not at first. It requires a little skill (that can be built), a little knowledge (the U of Tube), and a little patience while you learn how to use the machine.
Now for the machine itself...
The print quality surprised me as a first time 3D printer user. I have purchased 3D printed items in the past and the lines were not something that impressed me. The K2 SE prints pretty much the same quality as the higher end Bambu Labs printers. The speed is all I could ask for, and I have fed this thing all kinds of PLA, PETG and TPU from Creality, Sunlu, Polymaker and AnyCubic without a problem. Any issues I have had have been the fault of the operator (me) not knowing I had to dry PETG before I use it. I have a Creality filament dryer now and dry my PETG right out of the package, then store it in an airtight container with dessicant. I have two printers running dried PETG sitting behind me right now and they're doing great.
If I have a single complaint about the K2 SE, it's the bed size. At 215 x 220 it's smaller than the industry "standard" of 256 x 256, and if you get some of the larger prints that are designed for a "standard" sized printer, they won't fit the build plate. But I knew that coming into this, because they advertise the size right up front.
Overall, I'm happy with the K2 SE. It was an excellent entry level printer and I have learned a lot from using it. I may even buy a second to add to my growing farm.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Creality K1 SE - Prints great with stock settings - needs a side spool mount
Set name: K2 SE, Set name: K2 SE
I bought the Creality K1 SE a little over a week ago. I had an Ender 3 S1 before this printer. The K1 SE is so, so much easier to print with right out of the box! I definitely recommend it. It's a good way to get the improvements that were built into Creality's K1C, but at a nicer price. Plus, you can install your own version of Klipper if you want.
I've printed 10 or so things in PLA and PETG, and I haven't had any failed prints. The automatic bed leveling has just worked. I have not had any problems with bed adhesion. On the Ender 3 S1, I only used a textured PEI plate, but the smooth build plate on the K1 SE works fine. The extruder cooling fan also seems ok for what I've printed so far. I printed an overhang test and the 75 degree overhang looks fine, but it had trouble at 80 degrees. The bridging test looked ok. (The longest bridge was only 25 mm on that test however.)
I've put the printer in a soft-sided enclosure that I had used for my old Ender 3 S1. (It's easy to find similar encolsures.) The LEDs on the K1 SE are bright enough to see inside which is something that I was concerned about before I purchased. However, this enclosure makes it difficult to access the back of the printer where the filament spool is mounted, so I designed a mount that clamps onto the side-bar - see the pictures. The files are on Printables - "Creality K1 SE Side Spool Mount".
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Reviewed in the United States on January 21, 2025
★★★★★ 3
Almost Good
Set name: K2 SE
The nozzle cleaning is completely ineffective. The wiper pushes material up the sides of the nozzle and melts onto the nozzle. The result is the nozzle leaves burnt debris on the prints. The calibration before each print only probes 5 points on the bed and the results are not satisfactory, with the nozzle being variously too close or too far from the bed. To adjust the z offset you have to go through several menus and the machine seems to not remember where you set it last time. Print quality is good except for VFAs. Part cooling fan is very loud at full speed.
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Reviewed in the United States on February 5, 2026
★★★★★ 5
Assembly Tricks And Tips.
Color: Dark Grey, Size: 5 Seat
All my packages came at same time. Assembly is in 3 phases, each box had the same complete instruction book, but each phase was not completely together in the same box. I immediately started opening boxes and just separated by letters. A's here, B's here. Not all A's or the other letters are the same, but it is very easy to follow the instructions. You won't get it mixed up. 3 hardware kits, it's pretty easy. Picture Book Difficulty :) The one large headboard piece was Letter M. There was no sticker on it, but there were no M stickers either. Pretty easy.
It's not a thick grandma's pull-out bed type of couch, but seems sturdy. I probably should have got the 3 year warranty, and I only have one kid. This isn't a couch to front-flip off the island on to, but it is nice and comfy and seems to be worth the cost. Assembly took about 2-3 hours casually I think. I used impact drill. Luckily it's 1 screw head size, then the socket for the nuts basically (provided). Communication with seller was easy and transparent. Idk what else people might be looking for in these reviews. It smelled completely fine. Good purchase. They say to air it out for a while, but I just assembled it immediately it didn't mess up anything.
OH! And a little trick for the double sided threaded bolts with no head, they can get stuck hand tightening it so tighten down one of the nuts all the way to the end of the exposed thread that sticks up, and you can thread those bolts that don't have a head WAY easier using the nut as the head. Then just loosen the nut back off of it. You'll understand what I mean. Thank You
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Would buy again!!!
Color: Dark Grey, Size: 7 Seat
⭐️⭐️⭐️⭐️⭐️ Perfect Couch for Comfort, Space, and Style!
I couldn’t be happier with my purchase of the SUAWY 108 Inch Sectional Sleeper. From the moment it arrived, I knew I made the right choice. Setup was straightforward, and the couch feels incredibly sturdy and well-built. The fabric is soft to the touch yet durable enough to handle everyday use, which is perfect for both lounging and having guests over.
The size is exactly what I was looking for — spacious enough to seat a large group comfortably without feeling cramped. Whether I’m relaxing after work, having friends over, or stretching out for a nap, it provides more than enough room. The chaise and sleeper function are real game changers. The pull-out sleeper is surprisingly supportive and comfortable — not at all like the thin, saggy mattresses I’ve experienced with other sofa beds. My guests have all commented on how well they slept!
I also love the storage space built into the sectional. It’s so convenient for keeping extra blankets, pillows, or even board games tucked away neatly. This design makes it feel like the couch was made with real-life use in mind, not just looks.
Speaking of looks, the style is modern and clean, and it blends perfectly into my living room. The neutral tone makes it easy to decorate around, and it honestly makes the whole room look more put-together.
Overall, this sectional sleeper has completely exceeded my expectations. It’s comfortable, practical, stylish, and worth every penny. If you’re on the fence, don’t hesitate — this is absolutely one of the best furniture investments I’ve made. I’m genuinely so happy every time I sit down on it, and I highly recommend it to anyone looking for a large, versatile sectional.
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Reviewed in the United States on September 8, 2025
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