System comprises of one active speaker with inbuilt stereo amplifier and one passive speaker which is powered from the active speaker. These high power music speakers feature exceptional sound quality for professional sound reinforcement. Including a 130mm bass driver, they feature a stylish contoured profile and quick mounting bracket which virtually disappears once mounted. An in-built amplifier allows easy integration into existing systems with only line level signal required for operation. The ported bass reflex enclosure produces outstanding sound reproduction ideal for areas requiring high quality sound reinforcement. Rear mounted volume, bass and treble controls allow easy adjustment, even after installation. RCAs provide easy connection to existing audio sources. Mains power for the amplifier is connected via integrated fixed mains lead. Each speaker can be switched off when not in use.