RENAISSANCE AMPLIFIER The Renaissance Amplifier is a push pull design with two voltage gain stages driving the modern Russian (Svetlana) 572 directly heated triode audio output tubes. These large monoblocks put out approximately 50 watts per channel. All power supply & output transformers are custom designed and manufactured by U.S. companies. »»more info AMPLIFIER ACCESSORIES Red Rock Audio is a U.S. manufacturer of speaker cables and interconnects and power cords for high-end audio equipment. [click any image below for detailed informaion]