2.1 bluetooth amplifiers in comparison

High-power Independent Control The peak power of Donner Bluetooth Stereo Audio Amplifier Receiver can set up to 440W(110W x 4), and has 4 CHANNELS which is independently controlled. 440W is enough to support 4 groups of 8 speakers with 4-8 ohms. Perfect for home theater, karaoke party.

WHAT'S IN THE BOX The audio receiver rack mount comes complete with everything you need to get started. This exclusive bundle from Pyle includes our top-of-the-line amplifier receiver, a wireless remote control, detachable hardware rack mounts, and an FM antenna.

Specifications Input Voltage DC 12V-24V. Max Power Output 50W*2 Left and Right channel +100W Subwoofer . Channel 2.1 CH Stereo Output. Output Impedance 4-8 . Bluetooth Version BT 5.0

The ZK-MT21 power amplifier board uses Bluetooth 5.0, and its transmission distance can reach 49 feet (without obstruction). At the same time, this power amplifier board has a 3.5mm AUX audio input interface. No matter what kind of input method, you can always find a method that suits you

40W + 40W Audio Power Amplifier 40W + 40W Rated Power, 4-16 Impedance, Can Present Audio Signals to your Passive Speakers. Audio Amplifier for Low Distortion, Accurate Reproduction of Music, Perfect for Your Karaoke, Home Theater, Acoustic Sound System.

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.

Model Number -MT21

, . Experience audio supremacy with its 120 WATTS power, boasting captivating 2.1 Stereo Sound. Elevate your entertainment to cinematic levels, where every nuance is delivered with extraordinary clarity and breath-taking depth.

2.1 channel HiFi Power Amplifier Can drive most home passive speakers, passive subwoofers. High performance effectively improves output power and audio quality. Maximum power output up to 200 watts. (Compatible with passive speakers only)

2.1 channel Bluetooth amplifier NS-14G Pro features Bluetooth, RCA, and AUX inputs, along with AUX, speaker, and SUB outputs, making it compatible with a wide range of audio sources, including smartphones, laptops, computers, CD DVD players, and TVs. Equipped with the QCC304X Bluetooth chip, it supports advanced audio codecs like aptX aptX-HD, ensuring low power consumption for extended battery life and robust connectivity that minimizes dropouts.

DC Converter Plug Amplifier board can use commercially available DC adapter (plug specification 5.5mmx2.1mm) to basically meet the needs of ZK MT21 Bluetooth power amplifier board. If your existing DC power plug is not 5.5mmx2.1mm, there is no problem, because we include a DC adapter in the product.

APPLICABLE Bluetooth 5.0 power amplifier board with 36x25x10mm 1.42x0.98x0.39in heatsink, applicable power supply DC12 24V 5A and above (24V battery pack cannot be connected), applicable speakers 20-100W, 4-8 .