Specifocations Operating voltage Dual AC24 32V recommended dual AC30V or dual AC32V 200 400W toroidal transformerPower amplifier chip SanKen1494 3858Channel type stereo two channel monoMono output 800WTwo channel output 450W 450WImpedance 4 ohm 8 ohm 16 ohm Size 22 14 5 8cm Features 1 The power amplifier board is thickened with heat sink on the basis of the old model It adopts circuit design high power good sound quality and minimal distortion 2 The parameters of the power amplifier board are strictly tested The two channels only need to be connected according to the wiring diagram 3 The board comes with filter rectification with heat sink only need to connect the power supply transformer and preamp 4 Mono wiring only need to connect the included red plug in to the board K1 K2 to be mono Package Included 1 x 1494 3858 High Power HIFI Audio Amplifier Board