FOCAL UNDERSEAT 10″ SUBWOOFER WITH AMPLIFIER FOCAL Bus20 is a 25cm (10″) underseat subwoofer and 120w amplifier inside. Aluminium active box. 80mm height 277mm width 371mm length. Max power 120W Nom. power 60W. Frequency response 50Hz – 400 Hz. External Remote level control supplied.  RR $599 SSV price $499 Great space saver if you have [...]