A set of KTV audio equipment including speakers, amplifiers, pre-effects, microphone, these four devices are necessary, some brands will use a comprehensive amplifier with effects, generally speaking, this amplifier will be used in the family KTV audio, professional KTV audio will generally separate the front and rear levels, the effect will be much better. Professional KTV audio equipment should be at least 8,000 a set of better results, first-tier cities KTV will generally use a better sound. My own home to get a set of Rambo audio 12-inch speakers sound set, plus jukebox, the price of 20,000 or less, the sound quality than outside the KTV to be too much better.