Active PA speakers with BT wireless connection and stereo link capability, housed in a compact and lightweight moulded PP enclosure. Custom designed low and high frequency drivers are powered by a digital amplifier circuit for powerful and energy-efficient performance. A switchable Mic/Line input and separate Line input are provided along with a Bluetooth receiver for playback from a smart phone or tablet. The BT section also has a link function which allows wireless connection to another CAB series speaker to form a stereo pair (Bluetooth signal only). Maximum sound output with minimal size, weight and setup time.