1. 4 audio inputs 2. 2 microphone inputs

1.USB/SD slot 2. TWo AUX inputs and two microphone inputs

1. USB/SD slot 2. two AUX inputs and four microphone inputs

1.Built-in USB/SD card 2.one AUX inputs and four microphone inputs

1.Built-in USB/SD 2.Two AUX inputs and four microphone inputs

1.Built-in USB/SD card 2.1 AUX inputs and 3 microphone inputs

The ARTONE stereo PA power amplifier KPA-2988L is a powerful professional amp for commercial audio system, small pa system, karaoke,school or mosque sound system. It is versatile use for the sound projects, for it has rich adjustment of music and microphone.Music's high, middle, low frequency and balance are adjustable. There are 3 microphone available use on the amplifier. Mic1 has echo, repeat, effect and different tone (trebel,bass, middle) to adjust. Both post connector or speakon connector for the stereo speaker output. It distribute powerful sound 300W x 2 to audience of school or mosque.