Features: High power maximum power per channel: 800W Brand new professional 800W Mono amplifier board 2SA1943/2SC5200 assembled Working voltage: dual AC24-45V;Position type:Left/Right Applicable: suitable for low-power digital amplifiers and analog amplifiers With adjustable current and temperature control. Specifications: Maximum power per channel: 800W Model: switching power supply board Working voltage: dual AC24-45V Horn protection：AC12V-0(Must connect) Size: approx 25X13.5X5.5cm/9.84x5.31x2.16in Chip:1943x4+5200x4 Colour:As Pictures Material:plastic+metal Position:Left/Right Package Includes: 1PC Digital Amplifier Board note: Only the above package content, other products are not included. Light reflection and different displays may cause the color of the item in the picture alittle different from the real thing. The measurement allowed error is 1-3cm.