LUXUS AUDIO - AMB4050BR

AMB4050BR is an Class D Amplifier with chip TPA3116D2 and  Bluetooth 5.0 APT-X module integrated on board and with TWS function.

One of the most important feature of this amplifier is that there is a  powerful DSP ADAU1701 on board.
It is possible to setup output of 4 different channels with different configurations such like 4 channels mono or 2 stereo 2 ways channels with crossover for woofer and tweeter in order to create a stereo system with 2 ways for multi-amplifier.
It is possible to set many other configurations depending of user needs.

Output power is 50W for each channel with a power supply of 24V. Voltage range is from 10V to 24V. Amplifier can power speakers with impedance from 4 to 8 ohm.

External Buttons port:

There are 3 buttons on the board which can control the audio volume and play/pause ect... You can connect external buttons easily by using this buttons control port.

Pins define:(Check the board backside silkscreen)

• P/P: Play pause button
• VOL+: volume increase and forward button
• VOL-: volume decrease and rewind button
• 8V

Aux in enable port:

The default DSP program are mix the RCA/Bluetooth audio and output to the amplifier chips. If you want select the RCA/Bluetooth manually by a switch. You can connect an external switch to this port and load a different DSP program.

POT port:

User can connect an external 10K potentiometer to control the audio volume.

DSP programming port:

User can load a new DSP program by using the USBi JTAG Sigma DSP programmer

The onboard default DSP program will mix the RCA&Bluetooth audio and output to the speakers. User can also change the DSP program to let the audio source selectable by an external switch.

2 boards work in TWS mode. You can also build a wireless subwoofer system.

• S1 - Long press 3s into pairing mode. Long press 6s clear the pairing info.
• S1+S2 - Long press 1s into TWS slave mode.
• S1+S3 - Long press 1s into TWS master mode.
• S2+S3 - Long press 1s disconnect TWS connection.

Specification:

Specifications typical @ +25℃, Powered by 30V DC, unless otherwise noted. Specifications subject to change without notice.

Features:

• Size: 13.5cm x 9.2cm x 3.4cm
• aptX, aptX Low Latency, SBC and AAC
• Bluetooth 5.0
• I2S Sampling Rate: 48KHz
• 4 channels
• Working voltage: DC12V-24V
• Over/under voltage protection
• Over current protection
• Over temperature protection

Applications:

• Personal computer
• Background music system
• Musical instrument amplifiers
• Home DIY
• Car audio