Sell AIYIMA A03 TPA3116 Subwoofer Bluetooth Amplifier HiFi TPA3116D2 2.1 Digital Power Amplifiers 50Wx2+100W Sound Amplificador best price

Features: 1. Support two input, one AUX input, connect wired analog signal input; another one Bluetooth 5.0 wireless input, can connect with mobile phone, computer and other Bluetooth devices. 2. Support the frequency adjustment of the subwoofer, you can adjust the bass frequency according to your needs. 3 support the bass frequency adjustment of the left and right satellite boxes, making the left and right speaker output more playable; in addition, the left and right speakers can also be used when the subwoofer is not connected 4. Two pieces of TPA3116D2 , one for the left and right channel output, one for the subwoofer output, the Bluetooth part adopts the imported QCC3003 high quality Bluetooth receiver, and the internal uses 4 NE5532 op amps, 3 of which can be plugged and unplugged, which is convenient for customers to change different styles. Op amps, increase playability, 5. Material, plug-in capacitors all use original imported goods, Japan NICHICON 6800uF large reservoir, ELNA audio coupling, black diamond filter RIFA EVOX filter. 6. No switch sound 7. Large heat sink, long-term high-power stable work 8. Power supply voltage: DC12V-24V, voltage socket 5.5*2.5, external negative internal negative (recommended DC24V4A) 9. Output impedance 4-8Omega 10. Output power left and right channel 50W+50W, subwoofer 100W. 2.1 channel. 11. Frequency response: 20-20KHz 12. Length * width * height (124 * 130 * 33mm); weight about 570g 13. The function of the knob from right to left is: total volume adjustment, left and right channel treble adjustment, left and right channel bass adjustment, subwoofer volume adjustment, subwoofer frequency adjustment. About the signal source The most commonly used signal sources are mobile phones and computers. The quality of audio signals output by mobile phones and computers according to different brand models is also different. Generally speaking, if the quality of the sound signal directly from the computer motherboard is relatively poor, it cannot be heard at a small volume, but it will be obvious after the amplifier is amplified. Precautions for use 1 Do not use cheap audio signal lines These lines are not shielded by themselves. High-frequency noise will be introduced. The louder the potentiometer rotates, the larger the noise will become, and the sound is very good, such as Akihabara. Quiet as deep sea, no whistling 2 The correct order of use is to connect the power supply of the notebook power supply and the power amplifier first, and then let the notebook power supply be connected to the mains. The wrong way is to first connect the laptop power to the mains and then connect the laptop plug to the digital amplifier. 3 Use a power supply with as much current as possible. If you only use 2-3A power supply, the output performance will be greatly limited. Package included: 1PC TPA3116 2.1 Bluetooth 5.0 Digital Amplifier(Without supply power)