The hybrid construction of our B30 with 2 × 15" speakers combines the advantages of bass reflex and horn systems – high efficiency, great range and a deep low frequency limit. The connection to the acoustic field happens over the entire front area thus reducing air friction and flow losses to a minimum. The result is efficient energy transfer with simultaneous controlled impulse reproduction and excellent dynamics. And at almost 39 kg the B30 is a lightweight. The relation of its size, weight and output turns this TW AUDiO classic into something special.