Description: This product includes 2.1 motherboard and knob. It adopts 6 imported disassembled three-way tube pairs, of which 4 are responsible for the channel and the other 2 are connected to the BTL circuit for subwoofer. Boot delay, instant shutdown,short circuit, overload protection. It has low noise, large output power and HIFI. Easy to install,convenient disassembly. Item 100% like the picture shown. Specification: Material: electronic material Size: 143x133x58 mm / 5.62x5.23x2.28 inch Model: DX-2.1 Working voltage: double AC18-24V Output power: 3x80W Subwoofer output: 120W Left and right channel output: 100W+100W Frequency response: 20HZ-30KHZ Distortion: 1% Package Includes: 1 Piece 200W DIY amplifier board Note: Please pay special attention to the output speaker cable can not be short circuit, otherwise it will burn out the power amplifier tube. Please allow slightly difference due to manual measurement
