Product Description 300W Dual Channel / 600W Mono Pure Rear Stage Power Amplifier Board with TPA3255 Chip Overview: Elevate your audio experience with this high-performance 300W Dual Channel / 600W Mono Pure Rear Stage Power Amplifier Board. Designed for audiophiles and sound enthusiasts, this amplifier board features the original TPA3255 chip and offers exceptional sound quality and robust performance. Specifications: Product Name: 300W Dual Channel / 600W Mono Pure Rear Stage Power Amplifier Board Product Model: ZK-3002 Power Amplifier Chip: Original TPA3255 Working Voltage Range: 18-50VDC (Limit 53V) Recommended Power Supply: 36-48V DC power supply with a current of 10A or more Adapted Speaker: BTL Dual Channel Mode: 3-8 ohms, 50-300W PBTL Mono Mode: 2-8 ohms, 100-600W Heat Dissipation: Temperature-controlled automatic air cooling or manual fan control Gain Selection: Potentiometer with 10 gear adjustment (26dB-36dB) Protection Mechanism: Input undervoltage, overheating, overcurrent, short circuit protection (Note: No input anti-reverse protection, positive and negative poles cannot be reversed) Features: High-Quality Materials: Made with premium components to ensure long-lasting performance and reliability. Powerful Performance: Single Circuit: 600W Dual Circuit: 300W + 300W Offers robust audio output with excellent clarity and depth. User-Friendly Operation: Temperature Controlled/Manual Control Fan: Allows for efficient heat dissipation and prolonged usage without overheating. Gain Selection: Easily adjust gain settings with a 10-gear potentiometer. Enhanced Sound Quality: Oxygen-Free Copper Wire: Improves sound quality by minimizing signal loss. Magnetic Shielding Mechanism: Strong anti-electromagnetic interference (EMI) performance. Front-End Amplification: Adjustable amplification range from 26dB to 36dB to suit various audio needs. Protection Features: Equipped with input undervoltage, overheating, overcurrent, and short circuit protection to safeguard the amplifier and connected devices. Bridging Method: BTL Mode: Cut off power, turn the No.1 dial switch to the ON position, and short connect the output end R+L+ to parallel output, while short connect the R-L to parallel output. Maximum Power: BTL Mode: 2 x 300W @ 50V 4 , 160W @ 50V 8 PBTL Mode: 600W @ 50V 2 , 300W @ 50V 4 , 160W @ 50V 8 Package Includes: 1 x Signal Generator 4 x Test Clips 1 x Type-C Cable 1 x English Manual Customer Service: Satisfaction Guaranteed: Your satisfaction is our top priority. If you encounter any issues, please contact us for prompt assistance. Support: We strive to provide excellent support and ensure your satisfaction with our products. Enhance Your Audio Experience: Upgrade your audio setup with the 300W Dual Channel / 600W Mono Pure Rear Stage Power Amplifier Board. Featuring advanced components and user-friendly controls, this amplifier board delivers superior sound quality and performance for all your audio needs.