1. The parameters of the high-power sound quality power amplifier board have been rigorously tested, as long as the wiring is accurate and correct, the sound can be heard, without any debugging by the user 2. Eight chips with fever grade materials create high-fidelity sound quality. 3. The power amplifier board thickens the heat sink volume, adopts circuit design, high power, good sound quality, and minimal distortion! The parameters of the power amplifier board have been strictly tested, and the two channels only need to be connected according to the wiring diagram below. It makes a sound without any debugging by the user. The board comes with a filter and rectifier and a heat sink. You only need to connect the power transformer and the front stage. 4. Easy and worry-free installation, with rectifier and filter, with speaker delay protection, and with large heat sink 5. Four filter capacitors single (channel mode): two 63V 6800UF and two 63V2200UF with a total capacity of 18000 microfarads to stable operation 6.400Wand400W mono power, 800W dual channel total power parameter: Working voltage: double group AC AC24-36V Suggested voltage: dual 30V or dual 32V Channel type: stereo dual channel, mono Mono output: 800W Impedance: 4 ohm 8 ohm 16 ohm Weight: 0.9kg colour: green Material: aluminum alloy andABS size: 22cmx14.5cmx8cm Package Contents: 1 x Power amplifier board Only the above package content, other products are not included. Note: Light 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.