TDA7293 Audio Amplifier Board
Note: Be sure to install a radiator! ! Otherwise it must be fried.
Wiring instructions Source input (IN): + positive input of audio signal, - negative
input of audio signal Output speaker (SP): + connected to the
speaker +, - connected to the speaker - Power input (AC 0 AC): AC
dual voltage input, dual 12-36V can be input. A dual 32V power
supply is recommended. Remember to use the AC output from the
transformer. Do not use a DC battery or a power adapter. Otherwise,
it will not work.