Impact Technology showed its top-of-the-line Airfoil 5.2 ($35,000) speaker system in one of the rooms at the Alexis Park large enough to accommodate such an elaborate two-channel setup. The Airfoil 5.2 consists of two towers that employ nine bending-wave drivers each, two powered subwoofers with 1000W amps, and a DC-powered crossover that can double as a preamp. Electronics were from Balanced Audio Technology -- VK-D5SE CD player, VK-50SE preamp, and VK-150SE mono amps. Acoustic Zen provided interconnects and speaker cables, while Shunyata Research products handled the power duties. The sound? Very spacious and delicate, but with plenty of drive and low-end power too.