TDA2030A Electronic Audio Power Amplifier Board Single Channel 18W DC 9-24V DIY Kit Features: 1, Optimized layout and wiring. 2, No noise, no hum. 3, Using enhanced components, NP infinite input coupling capacitance and high frequency low resistance output coupling capacitance. 4, Using 1% precision resistor and 5% accuracy monolithic capacitor. 5, The bass effect is properly increased. Specifications: Type: Single Channel Quiescent Current: 25 mA (appr.) Speaker Impedance: 4 Ω-8 Ω Output Power: 15 W(max 18 W) Total Harmonic Distortion: 0.08%(Po=0.1 to 14 W, RL=4 Ω) Signal to Noise Ratio: 94 dB-106 dB(1 W-15 W) Package includes: 1 x Audio Power Amplifier Board Note: