Feature: 1. Class D: The Digital power amplifier board is a high performance Class D power amplifier with Class D efficiency for true high end sound quality. Maintain ultra low distortion for perfect sound quality. 2. Versatile: Class D amplifiers feature for SAGAMI 7W14A inductors for clear and powerful sound, advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath Ultra HD). 3. Advertisement Mode: When total harmonic distortion is 10%, the sound amplifier board can drive up to 2 315W/4R loads and 2 150W (no clamp power)/8R loads, and has a 2 VRMS analog input interface that supports high performance DACs (eg, TI's PCM5242) seamless connection. 4. High Power and Ultra Low Loss: Achieved by 85mR MOSFET and optimized gate driver scheme. This solution can significantly reduce idle losses (less than 2.5W) compared to traditional discrete implementations. 5. Filter Capacitor: The main filter electrolytic capacitor adopts for Nixicon capacity 2200UF/63Vx2, 6 for Nixicon FW series 10UF golden sound input coupling capacitor. Other filter capacitors use the for Nichicon series. Specification: Item Type: Digital Power Amplifier Board Material: PCB Working Method: Class D Standby Current: 80mA Work Efficiency: >90% Channel: 2.0 Still/Mute: Short Circuit Mute Function Output Power: 315W/4Ω, 10% Distortion 185W/8Ω, 10% Distortion 260W/4Ω, Distortion 1% 150W/8Ω, Distortion 1% Frequency Response: 20Hz to 20KHz Dynamic Range: >100dB Signal to Noise Ratio: (SNR)>111dB Working Voltage: DC24-40V Switching Power Supply (Recommended Voltage 36V). Package List: 1 x Power Amplifier Board