The input voltage is DC 10-15V, and the test condition is 12V as an example: the power amplifier board suitable for TDA8954 chip with an output voltage of plus or minus 39V, the power amplifier boardsuitable for IRS2092 chip with an output voltage of plus or minus 56V, and the auxiliary voltage is plus or minus 15V regulated power supply , Suitable for pre-board; of course, it is also suitable for class AB power amplifier.Power supply requires a current of tens of A, please use thick wires to avoid loss of power supply.Colour:As shownMaterial:Metal+PCBSize:9.2 x 9.6 x 5.2cmPackage Contents:1 * Boost Power BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.