Ayre's K-5x preamplifier combines peerless musical performance with stunning visual design. The exclusive fully-balanced, zero-feedback circuitry renders music with vitality and life. Its custom-designed volume control is actuated by a silky smooth optical encoder, using FET switches and precision metal-film resistors to deliver absolute sonic transparency. The massive power transformer effortlessly provides startlingly real musical dynamics. The Ayre K-5x will transport you to a new world of musical enjoyment.