Input ports: RCA stereo lotus/AUX/U disk/digital coaxial. Clear vocals in both left and right channels, powerful subwoofer power, and strong force! Output power: 30Wx2+60W (left and right channels+subwoofer).
eBay
Motorcycle Speakers with Built-in Amplifier Wireless USB & AUX Inputs FM Radio 12V Metal MP3 Player
Aliexpress UK
Bluetooth-compatible power amplifier: Mini HIFI digital Bluetooth-compatible audio power amplifier. Output power: 20W+20W. Support wireless connection: TF card, AUX, U disk, MP3 format playback, support Bluetooth-compatible wireless connection.
eBay
HS-TD0655 (2MIC+MP3+USB+FM) Bosinas Amplificada Sound Equipment/amplifiers Big Speakers Outdoor Dj
Aliexpress UK
Digital inputs: USB, SD. Power output: 60 watts per channel into 4Ω (stereo). Speaker load impedance: 4Ω to 16Ω. Input sensitivity: 220mV (line).
eBay
HIFI 20W*2 50W*2 AP50L AP15H Stereo Bluetooth-compatible Digital Amplifier Board AUX USB-C Input
Aliexpress UK
The HiFi audio decoding amplifier board adopts original PCM5100 and MS8416, USB uses custom decoding chip, op amp NE5532. Input: Optical Fiber Input; USB Input; L/R Channel Analog Signal Input. Coaxial input support to 96KHz, optical input support to 96KHz, USB support 48KHz (computer does not need to install driver).
eBay
LM386 audio power amplifier module 200 times gain amplifier board mono power amplifier 5V-12V Input
Aliexpress UK
QTX KAD-2BT -Digital Stereo Amplifier with Bluetooth. A high output power of 55W max. Output power : 4 Ohms: 2 x 35W rms / 2 x 55W max. (@ 1kHz 10% THD). Efficient Class D digital amplifier. Input sensitivity : mic (unbalanced): 15mV.
eBay
AMP-14 4-Channel Headphone Amplifier Compact Stereo Headphone Amp with RCA/6.35mm/3.5mm Input Volume
Aliexpress UK
Bluetooth-compatible power amplifier: Mini HIFI digital Bluetooth-compatible audio power amplifier. Support wireless connection: TF card, AUX, U disk, MP3 format playback, support Bluetooth-compatible wireless connection.
eBay
LM386 audio power amplifier module 200 times gain amplifier board mono power amplifier 5V-12V Input
Aliexpress UK
Multi-Input 40W x 2 Bluetooth Amplifier. Designed for audiophiles and casual listeners alike, its powerful features provide the flexibility and clarity that you seek in a top-notch audio appliance. Why Choose Our Bluetooth Amplifier?.
eBay
AK270 Mini Audio 2-Channel Stereo Power Amplifier Portable Sound Amplifier AUX Input Speaker Amp for
Aliexpress UK
Output power: 2 x 80W. And low ampere is difficult to drive speaker. 1 x Amplifier board. Input priority is USB, AUX, Bluetooth. Support Bluetooth wireless input (max 15m). Input: U drive (FAT32 format, max 32GB), AUX, Bluetooth.
eBay
FiiO KA13 Mini Headphone Amplifier Portable Desktop USB DAC AMP Headphone Power Amplifier 550mW High
Aliexpress UK