The op amp uses fever‑grade AD828 patch, fine production process and professional design. Model: AD828. Item Type: Amplified Board Module. 1 x Amplified Board Module. The module has standard design and reasonable structure, easy to replace and install.
eBay
LP-838USB 2.1Channel Amplifier 12V Car Home Amp USB BT Lossless Music Play Digital Audio Amplificador with Remote Control HiFi
Aliexpress UK
Item Type: Bluetooth Digital Power Amplifier Module. Power Amplifier Chip: TDA7498E. 1 x Power Amplifier Board. Bluetooth Version: 5.0 (unobstructed, Approx. 10m / 32.8ft). Number of Channels: 2.0 channels (left channel, right channel).
eBay
AK35/AK170 800W 12V Home Car Bluetooth Hifi Power Amplifier Stereo BASS Audio Amp Speaker with USB TF RCA AUX In + Remote
Aliexpress UK
Bluetooth 5.1, QCC3034 support For SBC, AAC, APTX, APTXLL, APTXHD, power on and off. 5V : drive dual 4 ohm 3W. 1 x Module. Sound & Vision. "PLY": Press and hold for 3 seconds to force pairing mode, press and hold for 6 seconds to clear the pairing list.
eBay
AK-170 Mini HiFi Stereo Audio Amplifier Bluetooth LED 200W+200W 12V Dual Channel Power Home Car Amp with RCA Input Amplificador
Aliexpress UK
Better Sound: With this audio amplifier board, you can enjoy better sound quality with low noise as well as low distortion. Item Type: Audio Amplifier Board. 1 x Audio Amplifier Board. Output Power: 5W.
eBay
Sinilink 40W/50W Stereo Bluetooth 5.0Power Amplifier Board WIFI Mobile Control APP 12V/24V High Power Digital Amplifier Module
Aliexpress UK
When the POWER-EN is connected toBAT, module startup;. When POWER-EN disconnect BAT, module shutdown, usually used when battery power. Adopting the module electrically powered, only the 10K POWER-EN series resistor connected to BAT.
eBay
WOOPKER ZK-MT21 Sound Amplifier Module 2x50W+100W 2.1 Channel Subwoofer Bluetooth 5.0 Digital Power Amplifier Board AUX 12V/24V
Aliexpress UK
This audio amplifier module is based on LM386 chip. It has a gain value up to 20. 1 x LM386 Audio Amplifier Module. IN: Audio signal. GND: Ground. Add to Favourites. Product Details.
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2*50W Bluetooth 5.0 Power Amplifier Class D Audio 10W~200W HiFi Stereo Wireless Music Player Mini USB Sound Card App Digital AMP
Aliexpress UK
Maximum Output Power: 600W (300W x 2). High-Quality Input Design: The TPA3255 features a differential input structure. The input employs HiFi tantalum capacitors, resulting in a delicate and natural sound.
eBay
Sunbuck karaoke Sound amplifier 2.1 Channel 200W*2 High Power FM USB MP3 10 Segment Audio equalizer Car Bluetooth amplifier
Aliexpress UK
Use SA9023 ES9028K2M chip, decoder board's installation is simple, not requires particularly complicated operations. Supports up to 24‑bit 96K sampling rate. Sampling Rate: Supports up to 24-bit 96K sampling rate.
eBay
Digital Audio Power Amplifier Professional 4 Channel 4x1650w Subwoofer Preamplifier DJ Line Array Speaker Stereo Sound Amplifier
Aliexpress UK