Check the listing for details. TAS5613 2.1 Channel Bluetooth 5.0 Class D Digital Amplifier Board. Color: Black, Condition: New. Listed at 56.89 USD. TAS5613 2.1 Channel Bluetooth 5.0 Class D Digital Amplifier Board Introductions:The TAS5613 is a high performance analog input Class D amplifier with integrated closed loop feedback technology in the sub-amplifier. It has a driving capacity of up to 300W. When powered by a 36V single power supply, the speaker is loaded with 4 ohms. Unlike traditional Class D amplifiers, the distortion curve increases only when the output level goes into clipping.1. Using original TAS5613, TL0722. The Bluetooth module uses Qualcomm QCC3003 Bluetooth 5.0 module3. The Bluetooth DAC decoding chip uses Texas Instruments PCM5102A4. The resistors are made of precision patches to ensure a good signal-to-noise ratio of the whole machine.5. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents and PCB quality.6. Using a fully enclosed dust-proof potentiometer, the performance is more stable and more durable than ordinary potentiometers!7. The high-current inductor dedicated to the red and gray ring audio is used to ensure the sound is crisp and powerful.8. The machine adopts an all-aluminum chassis, and the surface of the chassis is all treated with a brushed oxidation coloring process!9. The way to connect to Bluetooth is the same as that of ordinary devices!Input method: analog and bluetooth input function. When the two methods are input at the same time, the Bluetooth input takes priority. After the Bluetooth connection, the RCA input is automatically disconnected; when analog input is required, please turn off the Bluetooth function of the mobile phone before switching. Parameters:1. Class: Class D2. Quiescent current: 65mA3. Work efficiency: 88%4. Output power: 4 ohm speakers, 150W+75W*2, at this time THD+N>=10%5. Frequency response: 20Hz to 20KHz6. Dynamic range: >100 dB7. Signal to noise ratio: 100dB (A-Weighted)Load range: 4-8 ohms8. Working voltage: DC24V-36V (input connector: outer 5.5MM* inner 2.5MM)9. Potentiometer function: from left to right bass adjustment, treble adjustment, volume adjustment10. Size: 180*100*43mm Package:1pc TAS5613 2.1 Channel Bluetooth 5.0 Class D Digital Amplifier Board