With a whopping 300 watts per channel on tap, the dual-mono Balanced Audio Technology (BAT) VK-655SE is indeed a beastly power amplifier—but with great power comes the need to properly handle it. Whereas many amp makers taking the dual-mono approach include separate power-amplifier channels in a single chassis, or even dual power-supply sections to minimize interactions between the left and right channels, BAT takes it a step further. For the VK-655SE, the Delaware manufacturer includes dual power-supply units…