Pass Labs' new Concept Amplifiers are high-bias, Class A, monoblock models employing the company's acclaimed Ultra-Symmetry circuit. Originally designed by Nelson Pass for use at his own retreat, they were shown in "concept" form at the 2010 CES - however, demand from dealers & distributors has turned them into actual products for shipment later this year. They represent Pass Labsâ€™ maximum design effort, and are like large versions of the company's flagship XA200.5 Amplifier, notable for its high output capacity, power and stability. Like the XA200.5, they deliver superb music without straining, and possess twice as much chassis, power supply, output stage and dissipation capacity.\n\n\nDiscuss "Pass Labs Concept Amplifiers Preview" here. Read the article.