DXA-BT-TX Overview and Use Cases

What Is the DXA-BT-TX?

The ToVi DXA-BT-TX is a Dante Bluetooth Encoder designed to convert two-channel Bluetooth audio into Dante 2-channel digital audio.

The DXA-BT-TX is built on the Dante Ultimo 2x2 platform and is designed to integrate Bluetooth audio sources into professional Dante audio networks. It receives wireless Bluetooth stereo audio from smartphones, tablets, laptops, and other Bluetooth-enabled devices, then sends that audio as Dante digital audio over a standard IP network.

The unit supports Bluetooth V5.1 and high-performance Bluetooth codecs including SBC, AAC, aptX, aptX-LL, and aptX-HD. Bluetooth input supports PCM 2-channel audio from 44.1kHz to 192kHz at 16-bit or 24-bit depth. Dante output supports PCM 2-channel audio at 48kHz at 16-bit or 24-bit depth.

The DXA-BT-TX supports Dante Controller software for routing, configurable Dante latency of 1ms, 2ms, or 5ms, PoE power, USB-C power, Bluetooth pairing control, API commands, firmware / Bluetooth updates, compact installation, and plug-and-play Dante network discovery.

The DXA-BT-TX is useful for conference rooms, classrooms, hospitality spaces, commercial AV systems, meeting rooms, houses of worship, event spaces, Dante audio networks, and installations where wireless Bluetooth audio needs to be sent into a Dante network.

IMPORTANT — DXA-BT-TX Converts Bluetooth Audio to Dante Audio

The DXA-BT-TX is a Bluetooth-to-Dante audio encoder.

This model is for sending Bluetooth audio into a Dante network.

It is not an HDMI device, optical converter, analog audio adapter, ARC converter, or Dante receiver.

IMPORTANT — This Is a Dante Transmitter

The DXA-BT-TX appears in Dante Controller as a Dante transmitter.

Use Dante Controller to route audio from the DXA-BT-TX to Dante decoders, Dante amplifiers, Dante DSPs, mixers, processors, or other Dante-enabled devices.

IMPORTANT — Bluetooth V5.1 Is Supported

The DXA-BT-TX supports Bluetooth V5.1 for wireless audio input.

Bluetooth performance depends on distance, wireless interference, paired source device, and codec support.

For best performance, keep the Bluetooth source device close to the encoder.

IMPORTANT — Supported Bluetooth Audio Codecs

The DXA-BT-TX supports multiple Bluetooth audio codecs.

For lower Bluetooth delay, use a source device that supports aptX Low Latency.

Actual codec selection depends on the Bluetooth source device.

IMPORTANT — Bluetooth Pairing Button Is Supported

The DXA-BT-TX includes a PAIR button for Bluetooth pairing.

The PAIR button works only when Bluetooth discovery is set to On.

Bluetooth discovery is On by default. If discovery is turned Off using API commands or a PC tool through the USB-C port, the PAIR button will not work until discovery is enabled again.

IMPORTANT — Bluetooth Status LED Shows Pairing and Connection Status

The front STATUS LED shows Bluetooth connection status.

Use this LED first when troubleshooting Bluetooth pairing or connection issues.

IMPORTANT — Dante Controller Is Required for Audio Routing

All Dante routing is managed through Dante Controller software.

The DXA-BT-TX sends Bluetooth audio into the Dante network, but the routing destination must be assigned in Dante Controller.

IMPORTANT — Dante Ultimo 2x2 Platform

The DXA-BT-TX is built on the Dante Ultimo 2x2 platform.

This provides stable Dante audio transport over standard IP networks.

IMPORTANT — Audio Sampling Rate Support

The DXA-BT-TX supports Bluetooth audio input and Dante audio output.

The Dante output runs at 48kHz.

Make sure Dante receiving devices are configured to a compatible sample rate.

IMPORTANT — Configurable Dante Latency Is Supported

The DXA-BT-TX supports configurable Dante device latency.

Latency is configured using Dante Controller.

If audio dropouts or unstable playback occur, increase Dante latency to 2ms or 5ms.

If Bluetooth delay is noticeable, use a Bluetooth source device that supports aptX Low Latency and reduce Dante latency if the network is stable.

IMPORTANT — Network Distance up to 328ft / 100m

The DXA-BT-TX connects to the Dante network through its RJ45 DANTE port.

Use high-quality network cable and a suitable network switch.

Poor network cable, damaged connectors, weak terminations, or incorrect network settings may cause the device not to appear in Dante Controller, audio dropouts, unstable routing, clock sync issues, or network discovery problems.

IMPORTANT — PoE and USB-C Power Are Supported

The DXA-BT-TX can be powered through PoE or USB-C.

If the Dante network switch supports PoE, the USB-C power connection is not required for normal power.

If PoE is not available, power the unit using the USB-C POWER port with a 5V/500mA power supply.

IMPORTANT — USB-C Port Supports Power, API Commands, and Updates

The POWER USB-C port has multiple functions.

To enter Bluetooth update mode, send the API command:

set bt update

Restart the unit after the update to apply changes.

IMPORTANT — RESET Button Reboots the Unit Only

The DXA-BT-TX includes a RESET button.

The manual notes that the RESET button only reboots the device. To reset the device to factory settings, use Dante Controller software or API commands.

Ports and Panel Layout

Understanding the LED Indicators

Use these indicators first when troubleshooting power, network connection, Dante activity, Bluetooth pairing, or Bluetooth audio input.

Step-by-Step Setup

1. Connect the DANTE / PoE port on the DXA-BT-TX to a 1G network switch.
2. If using a PoE switch, confirm the switch supports IEEE 802.3af PoE.
3. If PoE is not available, connect a 5V/500mA USB-C power supply to the POWER port.
4. Connect the computer running Dante Controller to the same Dante network.
5. Open Dante Controller.
6. Confirm the DXA-BT-TX appears as a Dante transmitter.
7. Press the PAIR button to start Bluetooth pairing.
8. On the smartphone, tablet, laptop, or Bluetooth source device, open Bluetooth settings.
9. Select the DXA-BT-TX Bluetooth device name when it appears.
10. Confirm the STATUS LED becomes solid when Bluetooth is connected.
11. Play audio from the Bluetooth source device.
12. In Dante Controller, route the DXA-BT-TX audio channels to the desired Dante receiver, amplifier, DSP, mixer, or other Dante-enabled device.
13. Confirm all Dante devices are set to a compatible sample rate.
14. Set Dante latency to 1ms, 2ms, or 5ms as required.
15. Confirm the DANTE port LINK LED is steady.
16. Confirm the DANTE port DATA LED blinks during audio transmission.
17. Test audio through the connected Dante receiving device.

Dante Controller Setup Requirement — Critical

Use Dante Controller to route audio from the DXA-BT-TX.

If the device does not appear in Dante Controller:

• Confirm the DXA-BT-TX is powered by USB-C or PoE.
• Make sure your computer and the DXA-BT-TX are on the same network or subnet.
• Check the network switch and Ethernet cable.
• Disable or configure firewall settings that may block Dante discovery.
• Confirm the correct network adapter is selected in Dante Controller.

Bluetooth Setup Requirement — Critical

Bluetooth must be paired correctly before audio can enter the Dante network.

If the device does not appear under Bluetooth on the phone or laptop:

• Confirm the DXA-BT-TX is powered by USB-C or PoE.
• Press the PAIR button to enter pairing mode.
• Long press the PAIR button to clear any device that may already be connected.
• Confirm Bluetooth discovery is On.
• Move the Bluetooth source device closer to the encoder.
• Try disabling and re-enabling Bluetooth on the source device.

Network Cable Requirement — Critical

Use high-quality CAT6 / CAT6A / CAT7 cable.

Poor network cable or network setup may cause:

• Device not appearing in Dante Controller
• Dante routing failure
• Audio dropouts
• DATA LED not blinking
• LINK LED not steady
• Clock sync issues
• Discovery issues
• PoE power problems
• Audio not heard on Dante receiving devices

Use direct, properly terminated network cable whenever possible.

Power Requirement — Critical

The DXA-BT-TX can be powered through PoE or USB-C.

If the unit does not power on:

• Check the PoE switch.
• Check the Ethernet cable.
• Check the USB-C power source.
• Confirm the USB-C power supply provides 5V/500mA.
• Try another network port or USB-C cable.

Surge protection is recommended.

API Command Control

The DXA-BT-TX supports API command control through the POWER USB-C port.

To use API commands:

1. Connect the POWER USB-C port to a PC using a USB-C cable.
2. Open a serial command tool on the PC.
3. Set the serial communication parameters.
4. Send the supported API commands.

Supported API commands include:

Example status feedback includes:

Bluetooth Device Name and Discovery

The Bluetooth device name can be checked or changed using API commands.

Factory default Bluetooth discovery is On.

The default Bluetooth device name format includes the device MAC address ending, such as:

Dante Adapter-12345

Pairing and Clearing Bluetooth Sources

Use these options if the DXA-BT-TX is already connected to another device or does not appear in Bluetooth search.

Understanding the Application Example

The application diagram shows the DXA-BT-TX connected to a PoE network switch. A smartphone connects wirelessly to the DXA-BT-TX using Bluetooth. The Dante network switch connects to a Dante amplifier.

This shows the main use case: Bluetooth audio from a smartphone is converted by the DXA-BT-TX into Dante 2-channel audio and routed through the network to a Dante amplifier or another Dante-enabled receiving device.

Supported Technical Specifications

Package Contents

What Bluetooth Devices Is the DXA-BT-TX Compatible With?

The DXA-BT-TX can receive Bluetooth audio from devices such as:

• Smartphones
• Tablets
• Laptops
• Bluetooth-enabled computers
• Bluetooth audio transmitters
• Bluetooth media players
• Other Bluetooth audio source devices

Compatibility depends on the Bluetooth source device, codec support, range, and wireless environment.

What Dante Devices Is the DXA-BT-TX Compatible With?

The DXA-BT-TX can route audio to Dante-enabled devices such as:

• Dante decoders
• Dante amplifiers
• Dante DSPs
• Dante mixers
• Dante audio interfaces
• Dante-enabled speakers
• ToVi Dante models
• AES67-compatible network audio devices

Routing must be configured in Dante Controller.

Frequently Asked Questions

Q: What is the DXA-BT-TX used for? 
A: It converts two-channel Bluetooth audio into Dante 2-channel digital audio for professional networked audio systems.

Q: Is the DXA-BT-TX a Dante encoder? 
A: Yes. It is a Dante Bluetooth Encoder.

Q: What Dante platform does it use? 
A: It is built on the Dante Ultimo 2x2 platform.

Q: Does it receive Bluetooth audio? 
A: Yes. It receives wireless two-channel Bluetooth audio.

Q: What does it output? 
A: It outputs Dante 2-channel digital audio through the DANTE RJ45 port.

Q: Does it output analog audio? 
A: Analog audio output is not listed for this model.

Q: Does it have HDMI input or HDMI output? 
A: No. It is an audio-only Bluetooth to Dante encoder.

Q: Does it support ARC, eARC, or optical audio? 
A: No. ARC, eARC, and optical audio are not supported on this model.

Q: What Bluetooth version does it support? 
A: It supports Bluetooth V5.1.

Q: What Bluetooth codecs are supported? 
A: SBC, AAC, aptX, aptX-LL, and aptX-HD are supported.

Q: Does it support aptX Low Latency? 
A: Yes. aptX-LL is supported.

Q: How do I reduce Bluetooth delay? 
A: Use a Bluetooth source device that supports aptX Low Latency and reduce Dante latency in Dante Controller if the network is stable.

Q: How do I pair a phone or laptop? 
A: Press the PAIR button to enter pairing mode, then select the device from the Bluetooth menu on the phone or laptop.

Q: How do I clear the currently paired Bluetooth device? 
A: Long press the PAIR button for up to 5 seconds, or use the set bt paired clear API command.

Q: Why does the PAIR button not work? 
A: The PAIR button only works when Bluetooth discovery is set to On. If discovery was turned Off using API command or PC tool, turn it back On using set bt discover on.

Q: What does the Bluetooth STATUS LED mean? 
A: Solid means Bluetooth is connected. Blinking at 2Hz means pairing. Blinking at 1Hz means Bluetooth is not connected.

Q: What Bluetooth audio format is supported? 
A: Bluetooth input supports PCM 2CH from 44.1kHz to 192kHz at 16-bit or 24-bit.

Q: What Dante output format is supported? 
A: Dante output supports PCM 2CH at 48kHz, 16-bit or 24-bit.

Q: Does it support Dolby or DTS audio? 
A: Dolby and DTS formats are not listed. Use standard stereo Bluetooth audio.

Q: Does it support Dante Controller? 
A: Yes. Dante Controller is used for routing and latency configuration.

Q: How do I route audio from the DXA-BT-TX? 
A: Use Dante Controller software. The device appears as a Dante transmitter, allowing audio channels to be routed to Dante-enabled receiving devices.

Q: What Dante latency settings are supported? 
A: 1ms, 2ms, and 5ms configurable Dante latency settings are supported.

Q: What should I do if audio has dropouts or unstable playback? 
A: Move the Bluetooth source closer to the encoder, increase Dante latency to 2ms or 5ms, press RESET to reboot the unit, or perform a hard reset through Dante Controller.

Q: What network cable should I use? 
A: Use CAT6, CAT6A, or CAT7 cable.

Q: What is the maximum network distance? 
A: Up to 328ft / 100m.

Q: What network bandwidth does it use? 
A: The manual lists network bandwidth as 100Mbps.

Q: Does it support PoE? 
A: Yes. It supports PoE IEEE 802.3af Class 0 through the Dante RJ45 port.

Q: Can it be powered by USB-C? 
A: Yes. It can be powered through USB-C using a 5V/500mA power supply.

Q: Do I need USB-C power if using PoE? 
A: No. If the Dante port is connected to a PoE switch, USB-C power is not required for normal operation.

Q: What is the power consumption? 
A: The manual lists power consumption as 0.65W max.

Q: What does the green LINK LED mean? 
A: It stays steady when the network connection is established successfully.

Q: What does the yellow DATA LED mean? 
A: It blinks during active Dante audio data transmission.

Q: What should I do if the device does not appear in Dante Controller? 
A: Confirm the device is powered by USB-C or PoE, make sure the computer and device are on the same network or subnet, and disable or configure firewalls that may block network discovery.

Q: What should I do if the device does not appear under Bluetooth on my phone or laptop? 
A: Confirm the device is powered, press the PAIR button to enter pairing mode, long press PAIR to clear an already connected device, and make sure Bluetooth discovery is On.

Q: What should I do if audio is not heard on Dante decoders? 
A: Check routing in Dante Controller, confirm the source sample rate is supported by the decoder, and make sure the decoders are on the same network or subnet.

Q: Does the DXA-BT-TX support API commands? 
A: Yes. API command control is supported through the POWER USB-C port.

Q: What serial settings are used for API commands? 
A: Baud rate 115200, 8 data bits, 1 stop bit, and no parity.

Q: How do I check the firmware version? 
A: Use the get fw version API command.

Q: How do I reboot the unit through API? 
A: Use the set reboot API command.

Q: How do I factory reset the unit through API? 
A: Use the set reset API command and confirm when prompted.

Q: How do I change the Bluetooth device name? 
A: Use the set bt name <x> API command.

Q: How do I check the Bluetooth device name? 
A: Use the get bt name API command.

Q: How do I turn Bluetooth discovery On or Off? 
A: Use set bt discover on or set bt discover off.

Q: How do I check whether Bluetooth is connected? 
A: Use the get bt connection API command.

Q: How do I check the connected Bluetooth source name? 
A: Use the get bt source API command.

Q: How do I enter Bluetooth firmware update mode? 
A: Use the set bt update API command.

Q: Does the RESET button factory reset the device? 
A: No. The manual states the RESET button only reboots the device. Factory reset must be performed through Dante Controller software or API commands.

Q: Does the POWER USB-C port support firmware and Bluetooth updates? 
A: Yes. The POWER USB-C port supports firmware and Bluetooth updates.

Q: Does the DXA-BT-TX need external power? 
A: It can be powered through PoE or through USB-C 5V/500mA.