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note: There are two types: Purchase, please choose image display
A Types : With LM317 regulator circuit .
B types :
Operating voltage: 15V-34V current recommended 4A or more
Power output: 100Wx2 (34V 8 ohms), parallel mode: (200WX1 4 ohms)
Board size is about: length 100mm / width 81mm / high 23mm
Board is a good finished board welding test, just connect the power supply, speakers and audio sources can be used. 8 ohm load Recommended supply voltage within 35V, 4 ohm load Recommended supply voltage within 30V, 4 ohm parallel mode supply voltage can be used 34V,
Also do not take the wrong power plus or minus, otherwise the chip may be damaged.