Stereo amplifiers with usb input in comparison

" , , - The D40 powered bookshelf speakers use the latest hi-resolution digital sound technology and 4" bass drivers. Adjust settings and volume with side buttons or the supplied remote. Immerse yourself in HD sound at home.

Convenient Remote Control The included remote control allows you to enjoy different music and sounds on your couch. You can conveniently control bluetooth speaker amplifier at any angle and get rid of wires.

Stereo Amplifier This AK45 Bluetooth amplifier is compact but packs a lot of punches! Provides 2.0 channel stereo with rated power of 40W+40W. Effectively improve the audio quality, providing clear and smooth sound without impurities. Wireless Bluetooth, easy to connect smart phones, tablets and other Bluetooth devices. Let you enjoy high quality music.

Seamless Bluetooth Pairing & Karaoke Ready Equipped with Bluetooth 5.0, this amplifier allows effortless pairing and maintains a stable connection up to 40 feet 10 meters. Perfect for wireless music streaming and karaoke with 2*microphone inputs, turning any gathering into a fun-filled event.

Karaoke & Audio Control Features Built-in mic echo, tone, and volume rotary controls bring professional DJ and karaoke functions into your living room or studio

Discrete LNRD How to solve the noise problem of 5V power supply? The E30 II's answer is the Discrete LNRD circuit (low noise reference driver). The Discrete LNRD circuit filters out the noise of various 5V power input and provides a stable power supply of ultra-low noise reference level for E30 II. With this technology, the noise floor of E30 II is lower than 1 .5uV.

User-Friendly Design Featuring intuitive controls and a sleek black finish, the Fenton AV430B is easy to use and looks stylish in any home or professional audio setup.

Powerful 2 300W Output Enjoy rich, clear sound with this mini stereo amplifier delivering 300W+300W peak power and 40W RMS per channel. Ideal for home theatre, karaoke systems, and compact audio amps that fit seamlessly in bedrooms, offices, or garages.

400W+400W Hifi Amplifier -- AK-390 audio power amplifier, offer 400W+400W peak power and 40W+40W rated power, advanced circuitry design, built-in bluetooth 5.0 core and YD7377 chip, no pop, no audible noise when Bluetooth connection is established, designed for the customers who pursue HiFi sound.

Mic Line + Stereo Line Inputs The Mini Mixing Console is great for multiple devices connectivity.3 XLR Lines input jack to connect mics or guitar, 1 pair L R 6.35mm and 1 pair L R RCA stereo inputs to connect CD plays keyboard computer. Plus 1 pair L R RCA output and 1 pair L R 6.35mm Main output to connect Active Speakers Power Amplifier Active sound system Trolley Active Speaker.(Note It is not possible to connect an output device with Bluetooth, and it can only be compatible with active)

2.0 two-channel with an output of 100W per channel.

ENJOY HIGH-QUALITY AUDIO Dual channel stereo amplifier receiver is perfect for your karaoke, home theater, acoustic sound system, and monitor headphones. Provide you with enough powerful power amplification, which can accommodate 2 sets of speakers