ST-838 2.1 Channel HiFi Stereo Subwoofer Amplifier, RMS 20Wx2+40W Mini Digital Audio Power Amplifier for Home Speakers, 80W Subwoofer Amplifier Audio Stereo Bass Amp with Power Supply - Black

Compact Yet Powerful: Do not underestimate its size, it delivers a significant boost to your audio setup. With 2.1 channel output RMS 20W×2 (L/R) + 40W (subwoofer), it can power most home, car, marine, and outdoor passive speakers and subwoofers with excellent sound quality. It features low distortion and acoustically accurate music reproduction for smooth and full audio. Bass, Treble & Sub
Volume Control: Designed with main volume, treble, and bass control knobs for precise sound adjustment, offering high playability. A dedicated subwoofer volume control is also included, allowing independent volume adjustment for a passive subwoofer and two passive speakers.
RCA & AUX Inputs: Equipped with standard stereo RCA and 3.5 mm AUX inputs, compatible with various devices such as mobile phones, MP3/MP4 players, CD players, TVs, and computers. Enjoy your music your way. A small blue woofer indicator light illuminates when the woofer is active.
Portable & Convenient: Mini
dimensions: 5.9" x 3.6" x 1.4" / 15cm x 9.1 cm x 3.7 cm.
Amplifier weight: 0.66 lbs / 0.3 kg. Compact design with an exquisite, stylish, and durable matte black case. The unique structure allows for simple installation in cars, marine vehicles, RVs, golf carts, or homes, saving space and offering convenient operation.
Great Value Choice: The package includes a DC 12V 3A power adapter, so you do not need to search for a compatible 5.5 x 2.5 mm plug adapter among your old power supplies or purchase one separately