TPA3116 bluetooth 4.2 Digital Receiver Amplifier Board 2.1 Channel HF208 NE5532 50W+50W+100W

Feature: Supply voltage: 10~25VDC with anti-reverse protection Power supply interface: DC2.1 seat Bluetooth version: Bluetooth V4.2 Default Bluetooth device name: Xpecial Audio (bulk device name can be customized) Audio input mode: wireless Bluetooth reception, USB decoding, audio input (3.5mm headphone) stereo Support playback format: MP3, WMA, WAV, FLAC FM radio: you need an external antenna, you need to use the remote control (the FM word pad on the board) Pre-chip: NE5532 Amplifier chip: stereo channel TPA3116 (50W+50W) bass TPA3116 (BTL 100W) Output power: 50W+50W+100W (bass) Adjustment knob: left and right channel output volume, bass crossover point, bass output channel volume Board size: 97*78mm height about 22mm Fixed hole size: 91*72mm Weight: about 102 grams Version model: SW-HF208 Recommended power supply: 24VDC >5A (power supply current is not enough, there will be a sound break when the volume is large and dynamic). The speaker speaker power is not very large, you can use 24V 3A power supply. Speaker impedance: 8 ohms is best, can also drive 4 ohms, 6 ohms, 8 ohms, etc. Instructions for use: The power-on blue light flashes (the paired devices are automatically paired) and the external device can search for Bluetooth devices for pairing. When using the u disk, LINE IN (3.5 headphone holder) is connected to the priority playback, and the audio input can be switched remotely. Package includes: 1 x Digital Receiver Amplifier Board 1 x Remote Control