Koawensa 2X25W+50W 2.1 Channel Bluetooth 5.0 Subwoofer Class D Audio Amplifier Board Kit with DC Female+USB Cable+Remote Control

Perfect circuit & HiFi clear sound concise layout and reasonable wiring, no pop and audible noise even at high power output. The sound is very clear and smooth, the bass with shocking effects just like in the cinema, providing auditory feast.

With a filter inductor, the sound is round and clear.

High Power Subwoofer Stereo Amplifier with a large power DC stereo amp, providing 3-5W output power.

Bluetooth 5.0 Featuring an integrated Bluetooth ATS2853 chip, this bluetooth amplifier supports streaming up to 50ft (15m). Effortlessly connect via Bluetooth to enjoy high-quality music from MP3, Phone, Pad, PC, or Laptop, embracing the wireless era.

The potentiometer adjusts the volume with a switch for easy control of the volume, making it ideal for DIY speakers.With a filter inductor, the sound is round and clear.It adopts copper DC connector and fence type terminal. It can withstand large current, no heat, no damage to the wire, good wiring and short circuit.

Product name 2.1 channel subwoofer power amplifier board

Number of channels stereo (dual-channel)

Sound Is Clear And Analytical With No Background Noise. Bluetooth Is Faster And More Stable.

Product name 2.1 channel subwoofer power amplifier board

Supply current 3-5A

Bluetooth 5.0 Featuring an integrated Bluetooth ATS2853 chip, this bluetooth amplifier supports streaming up to 50ft (15m), connect to your MP3 Phone Pad PC via Bluetooth input, 19V 4.74A power supply and 50W x2@4Ohm support to drive 2-8 Ohm speakers.

Output Power of ZK-502L This little thing smaller than a card can output up to 50w*2 power (peak power). Wide voltage input DC 5-24V, common power adapter can supply power for it. It is recommended to use a DC power supply between 12-20V.

BT30D wireless stereo amplifier adopts 2 pcs Texas Instruments TPA3116D2 chip. The TPA3116D2 are stereo efficient and digital amplifier power stage for driving speakers, with advanced oscillator PLL circuit employs a multiple switching frequency option to avoid AM interferences. High-performance effectively improve output power and audio quality. Max power output up to 200Watt.

Greethga

2.1 CH Wireless DAC Hifi Amplifier with EQ Control. MAX Power Output up to 120Watts x2@4ohm. DA2120C can drive most home bookshelf desktop outdoor(passive) speakers and powered subwoofer, offering low distortion and acoustically accurate audio reproduction. The bright digital LED display lets you see the settings you change easily and remote control for hassle-free adjust the inputs mode volume bass treble.

Supply current 3-5A

Amplifier Chip PAM8403

Output Power 2*160W + 220W

The Fosi Audio BL20C is a Bluetooth 5.0 enabled 2.1 channel stereo amplifier and U-disk player with a compact Class D power amp for home theater speaker systems. It allows for convenient and portable use with U-Disk input supporting popular audio formats such as MP3, WMA, APE, FLAC, and WAV. Flexible connection options include U-disk, Bluetooth, and RCA input, all capable of driving passive speakers and powered subwoofers to upgrade your audio system.

Bluetooth amplifier Board does not add a simple two-way microphone input module, but also has built-in DSP reverberation and howl suppression functions.