Parasound ZoneMaster 2350 amplificatore 2 canali350 watts x 2 @ 8 600 watts x 2 @ 4 2 stable for driving multiple speaker pairs Two pairs of speaker outputs with A B buttons Lockout switch on rear panel to disable A B buttons High pass filter, switchable for 30Hz or 80Hz Automatic on off by 12V trigger w looping output Automatic on off by audio signal Speaker level input enables integration with systems lacking preamp output jacks Parasound designed class AB input stage w premium Class D power