1. 5.1 active speaker, 5.1 home theatre 2. power:40W+10Wx5ch/RMS 3. ... 1.active big power 5.1 channel speaker, 5.1 computer speaker, 5.1 multimedia speaker, computer speaker, 5.1 channel speaker, 5.1 sound box, 5 ... .1 home theatre, 5.1 speaker. home theatre ...