D50E TPA3116 2.0 Digital Power Amplifier with Treble and Bass Adjustment Stereo HiFi Bluetooth 5.0 50Wx2

D50E TPA3116 2.0 Digital Power Amplifier with Treble and Bass Adjustment Stereo HiFi Bluetooth 5.0 50Wx2

Features:
- Built-in Bluetooth5.0, easy and simple to use
- TPA3116D2 digital power amplifier chip with 50Wx 2 output power and independent treble and  bass adjustment, which gives you a better music experience

Precautions:
- The specification of the DC power socket is 5.5 x 2.5, with an internal positive and external negative voltage range of 12V-24V. The higher the voltage, the higher the power, but it cannot exceed 24V, otherwise the power amplifier will be burned.
- The negative electrode of the power amplifier board cannot be connected together, otherwise it may cause the power amplifier board to burn out.
- The amplifier board defaults to Bluetooth on without inserting a 3.5AUX cable input. The phone searches for the Bluetooth name "BT5.0" to connect to the amplifier board's Bluetooth. After inserting the 3.5AUX cable, the Bluetooth will disconnect and stop working. Removing the 3.5AUX cable, it will automatically connect the Bluetooth.
- The output of the D50E power amplifier board can only be connected to passive speakers, and cannot be connected to active speakers or constant voltage speakers.

Specification:
- Model: D50E
- Output channel: 2.0channel
- Power amplifier chip: TPA3116 x 1
- Bluetooth version: Bluetooth 5.0
- Frequency response range: 20 - 20KHz
- Power supply: 12V - 24V, the higher the voltage, the higher the power
- Output power: 50W x 2/4ohm, 25W x 2/8ohm (testing: 24V)
- Applicable speakers: 0 ~ 300W, 4ohm, 8ohm, 16ohm
- Bluetooth transmission distance: 10m
- Protection mechanism: power reverse protection; short circuit protection; self-recovery over temperature protection
- Size: 70 x 90 x 15mm
- DC power port: 5.5 x 2.5

Note:
- The speakers in the picture is not included.