High-current toroidal transformers with high-endurance cores for a wide transient response.  Audio-grade rectifier capacitors for superior sonic performance.  Hgh-quality double-sided PTH PCBs and components ensure reliability even in tough ambient environs.  3 switchable operational modes: stereo, parallel, and bridge.  Intelligent cooling via large 120mm temperature-controlled high speed fans. LED indicators on the front panel for power, signal, clip, bass boost, and protect modes. Classy brushed aluminum finish front dial plate.