Audio amplifier 2 x 50W +100W subwoofer TPA3116 + Bluetooth 5.0 The XINYI Sini Audio audio amplifier based on the TPA3116D2 chip operating in class D is a small device with great capabilities. It is also called a digital amplifier. High output power with small size makes its efficiency up to 90%. The amplifier has 2 channels (stereo) 50W each and a 100W subwoofer output. Built-in high-quality filters ensure good sound quality by HIFI standard. The audio source can be a device connected to the AUX input of the amplifier, via USB - pen drive. The device also has a built-in bluetooth 5.0 module for wireless communication and music playback. A dedicated application allows you to operate the device. It is also possible to communicate with a computer or tablet. System applications can be used to play music. The user can adjust the sound volume using the built-in potentiometer. In addition, it is possible to adjust the frequency and volume of the subwoofer. In addition, it is possible to adjust the bass and treble in the right and left channels. The built-in pulser is used to turn on or pause the music being played. In addition, it allows you to completely turn off the device. The amplifier treats the Bluetooth signal as the default source. Then USB and AUX. A wide range of supply voltage from 5 to 26V DC and low power consumption make it possible to use a good quality plug-in power supply. There is no need to use large size power supplies based on a transformer. The system has protection against too low and too high voltage, as well as a heat sink that removes heat from the system. Additional protection against overheating and reverse polarity protect the module against damage. The speaker impedance can be 4 to 8 ohms . Terminal Block connectors allow you to screw wires from the speakers. The JACK socket is used to connect the power source. The device recognizes the connected audio source by itself. The amplifier is ideal for home use. Before using the amplifier, the housing should be screwed together and the radiator cooling the system should be placed. technical data: XY-S100L audio amplifier 2 x 50W +100W Model: XY-S100L manufacturer: XINYI Sini Audio based on the TPA3116D2 chip built-in Bluetooth 5.0 maximum output power (left and right channel): 2 x 50W subwoofer output: 100W work system: 2.1 stereo system supply voltage: 5 – 26V DC/10A audio input: Bluetooth, AUX, USB audio output: right and left channel, subwoofer, aux speaker parameters: right and left channel: 10-100W, impedance: 4-8Ω, subwoofer: 20 - 200W, impedance: 4-8Ω, maximum output power (total): 400W auto reconnect to blueooth active/passive audio output SNR: 92dB frequency range: 20Hz - 30kHz ESD protection overcurrent protection short- circuit protection overheating protection built-in heatsink possibility of control from the level of a dedicated application adjusting the frequency and volume of the subwoofer with potentiometers treble and bass potentiometer adjustment of the right and left channels volume potentiometer adjustment the on/off switch of the amplifier in the volume potentiometer the ability to connect a pen drive as an audio source start/stop music playback by short pressing the encoder supported pen drive file system: FAT32, maximum capacity 32GB ARK connectors for screwing the wires from the speakers DC JACK 5.5/2.5mm connector operating application: Sinilink-APP dimensions: 95 x 88 x 25 m weight: 156g Attention! The application only allows you to support some of the possibilities. It is under development. Some buttons may not be active. After subsequent updates, the application will allow for wider control of the device Selection of the power source for the amplifier: The power adapter is not included. It must be a power supply with a constant DC output voltage between 12V and 24V. You can use popular impulse power supplies - laptop chargers. However, it should be borne in mind that the cheapest switched-mode power supplies, due to their construction, may introduce noise into the audible audio path. Which power supply to buy? The approximate maximum output power of the amplifier, depending on the supply voltage, has been listed above. For example: we want to obtain the maximum power of the amplifier 2x50W. So the total output power will be 100W when we have connected loudspeakers with 4Ω impedance and a 24Vdc power supply. the efficiency or power of the power supply. It is good practice to use a power supply with more power than the amplifier to have some headroom. Let's assume that a 100W amplifier is connected to a 120W power supply. Hence we can calculate 120W/24V that the current efficiency must be at least 5.0A. P=UxI where P - power in watts [W], U - voltage in volts [V], I - current in amperes [A] A broader presentation of the product in the attachment