2.1-Channel Class D Mini Amplifier Board 6W+6W+25W Subwoofer

2.1-Channel Class D Mini Amplifier Board with Subwoofer Output

Upgrade your audio setup with this compact yet powerful 2.1-Channel Class D Digital Amplifier Module. Featuring the audiophile-grade TDA1517P chip, this mini amplifier board delivers crisp stereo output (6W + 6W) for left and right channels plus a punchy 25W subwoofer output — all in a space-saving PCB design. Ideal for DIY computer speaker systems, desktop audio builds, and custom home audio projects. Made in Mainland China.

Key Features

• High-Fidelity Class D Amplification: TDA1517P audiophile-grade chips power both stereo channels for genuine hi-fi sound reproduction.
• 2.1 Three-Channel Output: 6W + 6W stereo channels plus a dedicated 25W subwoofer channel for full, rich audio.
• Wide Voltage Range: Operates on DC 6.5–15V — compatible with power adapters, switching power supplies, or battery packs (recommended current ≥3A).
• Optimised PCB Layout: Compact FR-4 fibreglass board (1.6mm thickness) with a refined component layout for efficient thermal management and extended product lifespan.
• Low Power Consumption: Class D design maximises efficiency, keeping energy usage minimal without sacrificing audio performance.
• Easy Integration: Standard 3.5mm input jack for quick connection; compact dimensions make it easy to integrate into enclosures and DIY builds.
• Versatile Application: Perfect for PC speaker builds, custom audio enclosures, maker projects, and electronics hobbyists.

Technical Specifications

What's in the Box

• Power Amplifier Board × 1
• Knobs × 2
• Nuts × 2
• Washers × 2

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Frequently Asked Questions

Q: What power supply is recommended for the 2.1-channel amplifier board?

A: A DC power supply of approximately 13.5V with a current rating of at least 3A is recommended to achieve the full rated output of 6W+6W stereo and 25W subwoofer. The board is compatible with power adapters, switching power supplies, and battery packs within the DC 6.5–15V range.

Q: What size speakers are compatible with this amplifier module?

A: For the stereo satellite channels (6W + 6W), use 2–4 inch, 4–8 ohm, 3–25W full-range speakers. For the subwoofer channel (25W), pair it with a 4–6 inch, 4–6 ohm, 20–50W subwoofer for best performance.

Q: Is this amplifier board suitable for computer speaker DIY builds?

A: Yes! This board is specifically designed for computer and desktop speaker applications. Its compact size, standard 3.5mm audio input, and 2.1-channel configuration make it ideal for DIY PC speaker systems, custom audio enclosures, and electronics hobbyist projects.

Q: Does the board include volume control?

A: Yes, the board includes potentiometers (knobs) for volume control. Two knobs and the necessary nuts and washers are included in the package for easy installation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.