<p>1. The Power Amplifier Board Has A Thicker Radiator Based On The Old Model. Adopting Circuit Design, High Power, Good Sound Quality And Low Distortion!</p> <p>2. Strictly Tested Parameters Of The Power Amplifier Board. The Two Channels Only Need To Be Connected According To The Wiring Diagram.</p> <p>3. The Motherboard Comes With Its Own Filter Rectifier And Heat Sink. You Only Need To Connect The Power Supply, Transformer And Preamplifier!</p> <p>4. Stereo Version</p> <p>5. Mono Wiring: Just Connect The Included Red Plug-In To The K1 And K2 Boards To Achieve Mono Wiring.</p> <p>Working Voltage: Dual AC 24-45V Toroidal Transformer</p> <p>Power Amplifier Chip: Sanken1494\/3858</p> <p>Channel Type: Stereo Two-Channel, Mono</p> <p>Mono Output: 800W\/4 Ohm Load</p> <p>Dual Channel Output: 400W+400W</p> <p>Impedance: 4 \/ 8 </p> <p>Note:</p> <p>Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use</p> <p>Colour:As Shown</p> <p>Material:PCB+metal</p> <p>Package Contents:</p> <p>1 Amplifier Board Module</p> <p>1 Set x Wires</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>