The black DDB-BN40 4 x 2 Wall-Mounted Bi-Directional Mic/Line Dante Interface from RDL is a complete wall-mounted Dante audio network interface. It features four XLR mic or line inputs on the front panels and two line outputs on a rear-panel detachable terminal block. Special software is not required to configure the DDB-BN40. 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. Each rear panel output provides a switch to set the output to balanced professional or unbalanced consumer level.

The DDB-BN40 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 four 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 two Dante audio channels are converted to balanced line level. 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 outputs are connected through a detachable terminal block.

The rear panel outputs are intended for connection to RDL AMS connectors mounted in Decora-style plates that match the DDB-BN40. AMS audio connectors include RCA, mini, and XLR jacks. The output plate may be located together with the DDB-BN40 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 DDB-BN40 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 four audio inputs and two audio outputs

Four XLR front panel inputs

Converts four 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 48 V mic Phantom (P48)

Switch-selectable line gain: Unity, 12, or 19 dB

Converts two Dante network audio signals to line level

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

Related Questions and Answers

Q: 1. Will this fit snug on a 70-200mm ring and not slip at all?

A: The ridge at the rear of the quick release plate of the Really Right Stuff B9 Multiuse Bi-Directional Plate (B&H# REB9PLATE) may make it difficult or impossible to fit on the feet of some feet that are attached to the tripod ring of a 70-200mm lens. To be clear, it is designed to attach to that foot rather than to the ring itself. Either way, please contact us in chat, by phone, or by email to discuss choosing the right quick release plate for your needs as this is not likely to be it.

Q: 2. Will this work with the SIGMA fp?

A: Yes. The following system ill accommodate you sigma FP system.

Q: 3. Do you recommend this for the 5D Mark IV

A: Sure, works well on the 5d4.

Q: 4. What size hex does this require?

A: The Really Right Stuff B9 Multi-Use Bi-Directional Plate indicates it includes a 5/32 Hex Key under the "In The Box" section under the Overview tab of our website.

Q: 5. Hi. Will the lip/dovetail reach the back of the base on a Pentax K-1? I currently have a similar plate without the lip/dovetail which does not really secure my camera in one spot, so it has a tendency to move around on the plate after a while. I was hoping that the lip/dovetail could reach the end of the base of the camera so that it would kind of lock itself in once tightened down.

A: Yes the lip fits perfectly on the Pentax K1 to keep the plate from rotating.

Q: 6. Does it fit on a Sony A7R IV, A7S III, and A1?

A: It will fit but it would not be ideal. The anti twist flange would push the camera further out and be less stable. This Sunwayfoto would be a better option for a bi directional plate: https://bhpho.to/3hZpT2O

Q: 7. Can I put two B107 Mounting Screws in this plate?

A: Yes, The B107 is one of the most common mounting screw used on nearly all 1/4"-20 threaded mounting plates on the market.

Q: 8. Will this plate fit on the original Sony RX 100 ?

A: Yes the Really Right Stuff B9 Multiuse Bi-Directional Plate will fit the Sony RX100 camera.

Q: 9. Is this album PAT certified?

A: The Pioneer Photo Albums CLB-346 Sewn Bonded Leather Bi-Directional 300 Pocket Album (Burgundy) is archival and acid-free, but is not PAT certified.

Q: 10. Does this plate fit the DBA-1 60mm QR clamp? Does it fit other arca-swiss compatible base clamps?

A: Yes, the Desmond Bi-Directional plate will fit the Desmond 60mm QR clamp, as it is an Arca-type plate. This will work with any Arca-Swiss compatible clamps.