Wisdom Audio gave an overwhelming demonstration of its huge LS4 loudspeakers ($90,000/pair) and STS subwoofer ($11,000). A pair of D’Agostino Momentum stereo amplifiers ($29,000 each) were used to biamp each of the LS4 panels, and a single Momentum monoblock ($27,500) powered the sub. You also need the Wisdom SCI electronic crossover ($6500) to make all this work.
The source was a laptop feeding dCS’s brand new Vivaldi DAC ($34,999). I believe the cables were by Transparent.