Features: 1) Karaoke amplifier: DA series amplifier is a competent not only for luxurious KTV rooms, but also for Hi rooms (pop karaoke rooms with very high SPL for long duration for some players) 2) Karaoke speaker: CS series is an apotheosis of Karaoke speakers, meeting the needs of different karaoke rooms, delivering rich, powerful sound that is ideal for Karaoke mix of prerecorded instrumental music and live vocals 3) Applicable for karaoke supermarkets (pop amusement centers in the East Asia consists of many luxurious individual rooms for karaoke and dancing) and luxurious KTV rooms