MT21

The MT21 Channel Power Amplifier Board is a high-power audio amplifier module designed to drive left, right, and subwoofer speakers. It supports a DC 12–24V power supply and delivers up to 50W × 2 + 100W output, making it suitable for DIY and custom audio systems.

The board features independent master volume, bass, treble, subwoofer volume, and subwoofer frequency controls, allowing users to fine-tune the audio output. It uses the TPA3116D2 amplifier chip and includes an aluminum cooling heatsink for improved thermal management.

With its compact PCB design, 3.5mm audio input, screw-terminal speaker connections, and 2.1-channel configuration, it is suitable for home audio systems, desktop speakers, DIY speaker projects, car audio setups, and portable sound systems.

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Category: Amplifier Board

Description
Other Power Features of MT21

Description

Key Highlights

Product Type: 2.1 Channel Power Amplifier Board
Model: MT21
Power Supply: DC 12–24V
Output Power: 50W × 2 + 100W
Channels: 2.1 (Left + Right + Subwoofer)
Amplifier Chip: TPA3116D2
Frequency Response: 20Hz–20kHz
Input: 3.5mm audio
Cooling: Aluminum cooling fin
Controls: Master Volume, Bass, Treble, Subwoofer Volume & Frequency
PCB Size: Approximately 123 × 103 × 25 mm

Key Features

High-performance embedded PC module for interactive flat panels and digital signage applications.
Intel Core i3 / i5 / i7 processor options.
DDR4 RAM support (4GB/8GB options).
Integrated Intel HD Graphics.
500GB/1TB HDD or 128GB/256GB M.2 SSD support.
6 × USB 3.0, HDMI, DisplayPort, VGA, LAN & Audio ports.
Gigabit Ethernet (10/100/1000 Mbps).
Dual-band Wi-Fi (802.11ac) & Bluetooth 4.2.
Compact low-power design.
Windows 7 and above compatible.
Low standby power (~1.35W), max power ~95W.

Other Power Features of MT21

Power Supply Mode: Internal power supply module
Power Requirement: 100–240V AC, 50/60Hz (universal input)
Maximum Power Consumption: Up to 95W
Standby Power Consumption: Approximately 1.35W (energy-saving mode)
Low Power Consumption Design: Designed for efficient operation in interactive displays and digital signage systems.
Power Efficiency: Suitable for continuous-use applications such as classrooms, kiosks, advertising displays, and interactive panels.
Stable Performance: Supports high-performance processors (Intel Core i3/i5/i7 options) while maintaining compact power requirements.