No atcing,no veo mediciones.
Los 2 modelos últimos que he puesto son modelos nuevos.
Según BK y sino he interpretado mal con el traductor,este al llevar 2 drivers ( uno pasivo ) su superficie
de trabajo equivale a un driver de 17"

Customers have always been interested in the performance of the 300W Monolith Subwoofer, but some have been put of by the size. To get close to the performance of the Monolith we have designed the P12-300SB-PR a 50 litre enclosure incorporating a 12" driven element and a 12" passive radiator making a drive area of a massive 17".



Saludos.