The most inconspicuous system is the Azimut-KAMUT2L1 composed of two impossibly mini 3.7-cm-long Lyzard-KZ1 loudspeakers, an ultra-compact Truffle-KTR24 subwoofer, a 144x144x26mm (5.7×5.7×1.8in) Kommander-KA02 amplifier and a covert remote control. The Azimut-KAMUT2L1 is designed for discreet use in a variety of intimate environments where high-quality background music is needed in a compact form, such as museums and small retail stores.
Everything you need to know can be found here – K-Array