Product description
This is a preamplifier NE5532 board and it can replace 4558, LM833, LT1057, AD827, OPA2604...
Magnify sound by 5 times.
Improve your audio quality.
Size: Approx. 36.5x35.2mm/1.4x1.4 Inch
VCC----Battery Positive 12V-30V DC
GND----Ground, Battery Negative
Rout----R, Right Channel Output
Lout----L, Left Channel Output
Rin----R, Right Channel Input
Lin----L, Left Channel Input