Product Description: 1. High power, good sound quality, power amplifier board parameters have been rigorously tested. 2. Easy to install, with rectification and filtering, speaker delay protection, large heat sink. 3.8 TOSHIBA chips for high fidelity sound quality. 4.4 filter capacitors (mono mode) Two 63V6800UF two 63V2200UF total capacity of 18000 micro-method to ensure stable operation.