The 3-sub 10-dana light dance home band of the DE-ZIGMA310 model has 6 10-inch subwoofers, two 4-inch midrange speakers, and two 1-inch tweeters. The sound power of this home band is 240 watts. The subwoofer of this speaker is an active type and has an internal amplifier that amplifies the sound and increases the sound quality. This model is capable of playing MP3 audio files and has Bluetooth.