The TPA3110 XH‑A232 is a compact dual‑channel Class D audio amplifier module powered by the Texas Instruments TPA3110 chip. Designed for Arduino and other DIY audio projects, it delivers clear stereo output with impressive efficiency 

Specifications:

• Output: 30 W per channel into 4–8 Ω speakers (peak)
• Supply Voltage: DC 8–26 V, typical operation around 12–24 V 
• Current Requirement: ~3 A
• Signal‑to‑Noise Ratio: ≥ 90 dB (some sources list ≥ 100 dB)
• Total Harmonic Distortion: ≤ 0.1 %
• Frequency Response: ~20 Hz–20 kHz
• Input Sensitivity: ~0.775 V
• Impedance: Input ~20 kΩ, Output 4–8 Ω
• Dimensions: Approx. 53 × 45 × 14–15 mm, weight ~20–25 g 

Features:

• High efficiency Class D operation with low heat output, even at higher power levels
• Protection circuits include over‑voltage and output current limit features for enhanced reliability
• Bridge‑tie‑load (BTL) configuration increases output power from a compact module 
• Straightforward setup — simple wiring for power, audio input, and speaker output
• Versatile — ideal for car audio, DIY Bluetooth speaker systems, home theater audio, Arduino/Raspberry Pi projects 

User Notes

• Speaker wiring polarity may not always match silk‑screen labeling; reversing one channel cord improved sound quality in real user tests 
• Audio may distort under undervoltage or with lower-quality power supplies; adding a power‑input capacitor bank may help reduce clipping
• Many users report good volume and low heat dissipation at 12 V with 4 Ω speakers