300W dual channel/600W mono pure rear stage power amplifier board Bridge single circuit 600W, double circuit 300W+300W
Power amplifier chip: original TPA3255
Adaptable power supply: Working voltage range 18-50VDC, limit voltage 53V. 36-48V DC power supply with current 10A or above is recommended. The higher the voltage, the higher the output power. Speaker: 3-8 ohms, 50-300W in BTL dual channel mode; 2-8 ohms, 100-600W in PBTL mono mode.
Heat dissipation method: temperature controlled automatic air cooling, or manually selecting the fan to keep running. Gain selection: Potentiometer 10 gear adjustment, 26dB-36dB
Bridging method: First cut off the 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: In BTL mode, 2* 300W@50V 4 , 160W@50V 8 ; In PBTL mode, 600W@50V 2 , 300W@50V 4 , 160W@50V 8 Protection mechanism: Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse protection, positive and negative poles cannot be reversed!
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Product name
300W dual channel/600W mono pure rear stage power amplifier board
Power amplifier chip
original TPA3255
Adapted power supply
Working voltage range 18-50VDC, limit 53V. It is recommended to use a DC power supply with a voltage of 36-48V and a current of 10A or more. The higher the voltage, the greater the output power.
Adapted speaker
3-8 ohms, 50-300W in BTL dual channel mode; 2-8 ohms, 100-600W in PBTL mono mode
Heat dissipation method
temperature controlled automatic air cooling, or manually selecting the fan to keep running.
Gain selection
Potentiometer 10 gear adjustment, 26dB-36dB
Bridging method
First cut off the 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 In BTL mode
2* 300W@50V 4 O, 160W@50V 8 O;
Maximum power In PBTL mode
600W@50V 2 O, 300W@50V 4 O, 160W@50V 8 O
Protection mechanism
Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse protection, positive and negative poles cannot be reversed!
Product name
300W dual channel/600W mono pure rear stage power amplifier board
Power amplifier chip
original TPA3255
Adapted power supply
Working voltage range 18-50VDC, limit 53V. It is recommended to use a DC power supply with a voltage of 36-48V and a current of 10A or more. The higher the voltage, the greater the output power.
Adapted speaker
3-8 ohms, 50-300W in BTL dual channel mode; 2-8 ohms, 100-600W in PBTL mono mode
Heat dissipation method
temperature controlled automatic air cooling, or manually selecting the fan to keep running.
Gain selection
Potentiometer 10 gear adjustment, 26dB-36dB
Bridging method
First cut off the 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 In BTL mode
2* 300W@50V 4 O, 160W@50V 8 O;
Maximum power In PBTL mode
600W@50V 2 O, 300W@50V 4 O, 160W@50V 8 O
Protection mechanism
Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse protection, positive and negative poles cannot be reversed!
TPA3255 Digital Amplifier Board Stereo 300W x 2, Bridged Mono 600W Amplifier Audio Music Power Amplifier Board
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Additional Information
First Listed on Newegg
April 26, 2026
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Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
