Rationalizing its range of speakers, Logic System now offers the B.5 and B1, install subs with a 12" and 15", 400W and 500W respectively, both with a frequency range between 40-150Hz, designed to complement the LS range. The existing range already offered a twin 12" and 15" which remain, but all other subs have now been discontinued, greatly simplifying end-user purchase decisions, and equipment utilization. Logic's Ethos line array is based on 120° by 10° dispersion and is lightweight (27kg per cabinet). The system requires just three boxes minimum to achieve linear characteristics, while the flyware allows up to 18 boxes in line. Sub cabinets are designed to be flown at the top of an array, or ground-stacked.