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ZK-MT21 50W x 2 + 100W 2.1-channel Bluetooth digital power amplifier module - bass speaker with both high and low frequency ranges

2.1-Channel High-Power Audio Amplifier: Delivers 50W × 2 stereo channels plus dedicated 100W subwoofer output for immersive 2.1 audio systems. Powerful Class D amplification drives bookshelf speakers and subwoofersideal for desktop audio, home theater, car audio upgrades, and DIY speaker projects.
Integrated Bluetooth 5.0 Wireless Streaming: Built-in Bluetooth module supports wireless audio streaming from smartphones, tablets, and computers. High-fidelity audio transmission with low latencyconvenient wireless connectivity eliminates cable clutter for modern home audio setups.
Full-Range Audio with Dedicated Bass Channel: Separate high/mid-frequency stereo outputs (50W each) and independent subwoofer channel (100W) provide complete frequency coverage. Adjustable bass boost and treble controlscustomizable sound signature for music, movies, and gaming applications.
Compact Digital Amplifier Module: Efficient Class D topology delivers high power with minimal heat generation in compact PCB design. Onboard volume control, tone adjustment, and LED indicatorseasy integration into active speaker systems, multimedia speakers, and powered subwoofer builds.
Versatile Input Options: Features Bluetooth wireless, AUX, and optional USB/TF card inputs for maximum source compatibility. Supports multiple audio sourcesperfect for PC speakers, Bluetooth soundbars, car audio systems, and portable Bluetooth speaker projects requiring powerful bass output.

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2.1-Channel High-Power Audio Amplifier: Delivers 50W × 2 stereo channels plus dedicated 100W subwoofer output for immersive 2.1 audio systems. Powerful Class D amplification drives bookshelf speakers and subwoofersideal for desktop audio, home theater, car audio upgrades, and DIY speaker projects.
Integrated Bluetooth 5.0 Wireless Streaming: Built-in Bluetooth module supports wireless audio streaming from smartphones, tablets, and computers. High-fidelity audio transmission with low latencyconvenient wireless connectivity eliminates cable clutter for modern home audio setups.
Full-Range Audio with Dedicated Bass Channel: Separate high/mid-frequency stereo outputs (50W each) and independent subwoofer channel (100W) provide complete frequency coverage. Adjustable bass boost and treble controlscustomizable sound signature for music, movies, and gaming applications.
Compact Digital Amplifier Module: Efficient Class D topology delivers high power with minimal heat generation in compact PCB design. Onboard volume control, tone adjustment, and LED indicatorseasy integration into active speaker systems, multimedia speakers, and powered subwoofer builds.
Versatile Input Options: Features Bluetooth wireless, AUX, and optional USB/TF card inputs for maximum source compatibility. Supports multiple audio sourcesperfect for PC speakers, Bluetooth soundbars, car audio systems, and portable Bluetooth speaker projects requiring powerful bass output.

Additional Information
First Listed on Newegg	July 30, 2026

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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