Top 10 Best Class D Amplifier Boards of 2025
Class D amplifiers are popular for their high efficiency and compact size, making them ideal for various audio applications. Whether you’re building a DIY audio project or upgrading your existing setup, choosing the right Class D amplifier board is crucial. In this article, we will review the top 10 Class D amplifier boards of 2025, highlighting their features, pros and cons, and pricing information to help you make an informed decision.
1. TPA3116D2 Class D Amplifier Board
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 100dB
- Size: 3.8 x 2.4 inches
Pros:
- High efficiency and low heat generation
- Excellent sound quality
- Compact and lightweight design
Cons:
- Requires external power supply
- Limited to 4Ω speaker impedance
Price: $10.99
2. PAM8403 Mini Amplifier Board
- Power Output: 3W x 2 (4Ω)
- Voltage: DC 5V
- Signal-to-Noise Ratio: 90dB
- Size: 2.3 x 1.8 inches
Pros:
- Very compact size
- Easy to use and integrate into projects
- Affordable price point
Cons:
- Limited power output
- Not suitable for larger speakers
Price: $5.69
3. IRS2092 Class D Amplifier Board
- Power Output: 100W x 2 (4Ω)
- Voltage: DC 24V to 50V
- Signal-to-Noise Ratio: 95dB
- Size: 5.5 x 3.9 inches
Pros:
- High power output suitable for larger setups
- Good sound reproduction
- Durable build quality
Cons:
- Higher price range
- Requires more complex setup
Price: $43.13
4. SMSL SA50 Class D Amplifier Board
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 95dB
- Size: 4.3 x 4.5 inches
Pros:
- Rich sound quality
- Compact design
- Stable performance
Cons:
- Power supply not included
- Limited to 4Ω speakers
Price: $39.99
5. Sure Electronics AA-AB32171 Class D Amplifier
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 100dB
- Size: 3.9 x 4.1 inches
Pros:
- Excellent audio clarity
- Built-in protection features
- Good thermal management
Cons:
- Requires proper setup
- May require heat sinks for extended use
Price: $139.00
6. Fosi Audio BT20A Class D Amplifier Board
- Power Output: 100W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 100dB
- Size: 4.2 x 4.7 inches
Pros:
- Bluetooth connectivity
- Rich bass and clear highs
- Compact and stylish design
Cons:
- Bluetooth range could be better
- Power supply not included
Price: $79.99
7.Clyxgs TPA3116D2 Dual Channel Class D Digital Power Audio Amplifier Board
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 98dB
- Size: 5.2 x 3.5 inches
Pros:
- High-quality audio performance
- Attractive design
- Durable construction
Cons:
- Higher price than similar models
- Requires 4Ω speakers for optimal performance
Price: $10.99
8. Nobsound G2 Class D Amplifier Board
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 95dB
- Size: 3.3 x 3.5 inches
Pros:
- Great sound quality
- Compact size
- Affordable price
Cons:
- Limited power output
- Needs a proper cooling system for high volume
Price: $79.99
9.Lepai LP-2020BT Bluetooth Hi-Fi Audio Mini Class D Stereo Amplifier FM Media with Power Supply
- Power Output: 20W x 2 (4Ω)
- Voltage: DC 12V
- Signal-to-Noise Ratio: 90dB
- Size: 3.5 x 4.5 inches
Pros:
- Excellent value for the price
- Compact and lightweight
- Easy to set up
Cons:
- Limited power for larger speakers
- Not suitable for high volume levels
Price: $29.98
10. Aiyima A07 Class D Amplifier
- Power Output: 50W x 2 (4Ω)
- Voltage: DC 12V to 24V
- Signal-to-Noise Ratio: 95dB
- Size: 4.1 x 3.5 inches
Pros:
- High fidelity sound
- Compact design
- Integrated protection circuit
Cons:
- Requires external power supply
- Power output may not be sufficient for large rooms
Price: $79.99
Conclusion
Choosing the right Class D amplifier board can significantly enhance your audio experience. Whether you are looking for a budget-friendly option or a high-powered amplifier for your home theater, the options listed above cater to various needs. Consider the features, pros and cons, and your specific requirements to make the best choice for your audio setup.