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Description
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
| 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 | 4 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 |
| Selector Controls | 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) |
| Line Outputs | |
|---|---|
| Outputs | Balanced, detachable terminal block (2) |
| Output Level | Operating: +4 dBu (nominal) balanced, -10 dBV (nominal) unbalanced, switch-selectable Maximum: +24 dBu balanced, +10 dBV unbalanced |
| Output Impedance | 150 Ohms balanced 2.5 kOhms 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 | 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 (W x H x D) | 3.52 x 4.11 x 2.09" / 8.94 x 10.44 x 5.31 cm |
| Weight | Not specified by the manufacturer |
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Bulk Discount
| Quantity | Price |
| 2 | ₹ 123039.0 |
| 3-5 | ₹ 121783.5 |
| 5-10 | ₹ 119272.5 |
| 10+ | ₹ 116761.5 |
Bulk discount will be automatically applied during checkout based on quantity.