30W*2 3 Inch Full Range Speaker DIY Subwoofer Audio Amplifier Fever HIFI Passive Speaker Front Desktop Audio Home Theater
https://www.vogueparade.com/shopping/EN/100000306/1/1005003753850805/30w2-3-inch-full-range-speaker-diy-subwoofer-audio-amplifier-fever-hifi-passive-speaker-front-desktop-audio-home-theater//