Description
The ZK-MT21 2.1 Channel Bluetooth Amplifier Module is a versatile and high-power audio solution designed for students, engineers, and hobbyists who demand premium sound quality. Whether you are building a custom home theater or upgrading your workstation speakers, this module provides the perfect balance of power and precision.
Superior Sound Customization
Equipped with the ZK-MT21 chipset, this board allows you to fine-tune your audio experience. Unlike standard amplifiers, it features dedicated adjustment knobs for:
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Subwoofer Frequency & Volume: Tailor the deep bass to match your room’s acoustics.
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Left & Right Channel Treble & Bass: Ensure crisp highs and rich mids for your stereo speakers.
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Main Volume with Power Switch: Smooth analog control for overall sound levels.
Advanced Engineering & Protection
Safety is a priority for industrial and hobbyist projects. This module includes built-in protection against over-voltage, under-voltage, overheating, and short circuits. It operates on a wide DC 12V-24V range, making it compatible with various power adapters and battery packs.
Why Choose the ZK-MT21 from HTE Bangladesh?
At HTE Bangladesh, we understand the needs of the local maker community. We ensure that every module is tested for reliability. This 2.1-channel setup is ideal for creating a professional-grade audio system without the bulk of traditional amplifiers. Its Bluetooth 5.0 technology ensures a stable, lag-free connection up to 15 meters, perfect for modern wireless setups.






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