Product description: TPA3116 Bluetooth dual channel amplifier board with volume adjustment The main technical parameters: 1. Size (L*W*H): 110*83*25mm, excluding the protruding part of the switch socket. 2. Operating voltage range: Direct current DC12-24V (current 3-4A, such as power requirements 20-24V/5-6A above) If you use AC (AC) transformer power supply, you must add rectifier filter to DC power supply Can be used. Note that the DC no-load voltage should not exceed 25.5V (this is very important) 3. Bluetooth receiving distance: >8 m (m), Bluetooth version 4.2, is barrier-free to block the receiving distance, and the Bluetooth performance of the mobile phone itself will also affect the receiving distance. 4. Sound source input sensitivity: 600 - 800mV; Frequency range: 20Hz - 20KHz 5. Speaker Impedance: 4-8 Ohm 6. Output power: Power Supply 12V/8Ω Speaker >10W x 2;12V/4Ω >15W x 2; 21V/8Ω >30W x 2; 21V/4Ω = 50W x 2; 24V/8Ω >35W x 2; 24V/4Ω >60W x 2; This is in accordance with the above test conditions, the actual test data on the instrument, the output power and power supply voltage / current, speaker impedance, the size of the audio input is related. When the power supply voltage/current is sufficient, the power supply voltage is usually higher and the relative output power can be made larger. Speakers with different impedances also have different output powers. Generally, the speakers have smaller impedance and more power Package included: 1PC TPA3116 Bluetooth dual channel amplifier board
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