Product parametersThe global power supply works anywhere in the world and offers PFC ( Power Factor Correction). It is a switching power supply easily deals with a very high variation in the AC mains voltage: it can drop by up to 20% below its nominal level (e.g. to 180VAC instead of 230VAC ) without any loss of the amplifiers rated output power. A regulated power supply also presents some other sonic advantages, such as better cone control and the same fast response as a linear power supply.KSeriesPro Audio Switching big power amplifierMODLE