TDA7377 Audio Amplifier Board Subwoofer Mega Bass 2.1 Power Amplifier Board DIY Kit Single Power Supply

Descriptions Note This is DIY Kits you need do it yourself Transformer Recommended Voltage DC12 18V the battery can also be positive and negative automatic identification do not worry reversed Many of our family router power idle most of them can be used the current size of the power output 1A is the most basic requirement 2A is more than a good casual use of other power supply specifications may cause burn The Speaker Recommended The main channel 10W 10W 3 5inch 4 8Ohm 10 20W Full range or Bass speakerSubwoofer 20W 4 6inch 4 8Ohm 10 40W inch subwoofer Speaker if the speaker power is small reduce the volume use this bass amplifier to strengthen the design so the volume is not necessarily the greatest use whether an individual speakers may cause distortion Be sure to use low frequency subwoofer speaker speaker identification method is big magnet ring off stiff and strong box seal conditional use labyrinth box paste sound absorbing cotton pure bass is relatively strong Package included 1 xTDA7377 Single Power Supply PC Subwoofer Mega Bass 2 1 Amplifier Board DIY Kit