Hi Izso,
Thanks for d advice. After checking the spec., my DVC subs are 4 ohm each coil. So, actually I've already wasted my monoblock capacity (300wx1@4ohm; 600wx1@2ohm) because I wired the 2 DVC to achieve 4ohm only. Does that mean I pumped 300w to each sub? or only 150w to each sub...