1The amplifier is made of aluminum alloy material, the surface is coated with anticorrosion paint, and the service life is long. 2The digital amplifier is integrally formed with glossy surface and can be installed smoothly. 3The power amplifier has a large heat dissipation area, can run for a long time, and improves the power amplifier effect. 4Stereo interface make sound quality more perfect, suitable for audio system use. 5Very suitable for your desktop or a digital amplifier in a small space in your home or office. Item Type: Amplifier Material: Aluminum alloy Model: TPA3255 Working Method: D Class Working Voltage: DC 24V-42V (DC36V is recommended, if the voltage is too high, it will cause serious heat) Total Output Power When THD+N is 1%: (240W/4) x 2 Total Output Power When THD+N is 10%: (325W/4) x 2 How to use:1. Accurately connect the interface according to the product identification 2. Turn on the switch to use 3. Turn off the machine after use, and then unplug the connector 1 x Amplifier 1 x Antenna