New Britain CSR8630 4.0 HIFI level Bluetooth receiver chip， high transmission speed， low distortion， sounds very delicate and natural. Sampling amplifier TPA3116 digital power amplifier， finished boards warranty for six months， excluding housing

Bluetooth correct use of the mobile phone side is greater than 3/5 of the volume as much as possible so you can get a relatively high signal to noise ratio， do not open the phone volume is too small， the Bluetooth signal to noise ratio thus transmitted decline

Supports analog signal inputs and Bluetooth signal input， Bluetooth input priority， turn the Bluetooth signal， the amplifier output Bluetooth message， disconnect the analog electricity， the phone off Bluetooth， automatic power-signal analog connection. (Analog signal is an audio signal computer， CD， MP3 issued)

PA 3 knob on the right is the total volume， the middle is the subwoofer volume control， left the stereo volume control

Any output power amplifier board all of his power and the current and voltage are related， 12V also enough under normal circumstances， to greater output power， 19-24V supply， 4A above the current is not small， and if you only have a 12V power supply but also increase the power of the board can be added to boost output to 24V to 12V

Board supports analog inputs and Bluetooth Input 2 ways

Special Note: The front panel switches are used to cut off the output， not cut off the power. So the power light is always on， not surprising. Because for this circuit， when there is no output quiescent current is very， very small， the internal circuit have perfect protection circuit， no other connection.

Unlike TAOBAO to sell those cheap and sell digital amplifier， low cost performance TPA3116 can not play， we have adopted key components have 2-3 times material to customize， regardless of the price performance and are the best.

This digital amplifier board for notebook switching power supplies and 12V-24V ordinary battery powered directly， both for the home and car amplifier， easy to use.

 

  This product is not any hum， but because it is a bare board is best to use a good shielded signal lines and installing a metal shield， which is the most basic DIY.

 Back in the middle of the gap can be used to hold the post. Location arrangements are very reasonable. This board is used for household and car amplifier are appropriate.

This product is a finished board to test well， the power that is used

The TPA3116D2 amplifier board with two digital amplifier chip as the core， make a left and right channel power amplifier， a subwoofer bridged drive， small size， high efficiency， high power characteristics. Regardless of the cost of materials， capacitance ， Thomson， ruby. Taiwan producing high-quality sealed potentiometers， original TPA3116D2 chip， SMD chip devices， and so on. Board circuit is simple， reliable work. Operating voltage 12V-25V. Left and right channel output 50WX2， subwoofer output 100W， efficiency can reach more than 90%， you can use switching power supply of notebook computers， it is also very suitable for battery-powered equipment， such as motorcycles， cars， electric cars and so on. Compact board， use and installation are very flexible and convenient. All components used to use genuine devices， capable of long-term stability.

   Low-loss inductors with red ring effect than Taobao cheaper products using those few cents a seal inductance more transparent sound. Op amp is NE5532， far more than material counterparts.

 PCB size is easy to install later 88X100MM rear output gap speaker output terminals
Tip: To audio input at a sufficient supply voltage / current enough， will have enough output power. Higher relative power supply voltage will be bigger， different speakers have different impedance output power. In the voltage and current enough， the number of speakers in Europe， the smaller the relative sound power， please pay attention!

Power: DC12-25V

Power: 2X50W + 100W Subwoofer

Board Size: 83x100MM