ZQ9004 is the latest addition to the Phoenix Gold family. Designed in the EU by the best engineers with over 20 years of experience in amplifiers. The result is the ZQ9004 an advanced amplifier with unparalleled performance, made from the best components on the market such as transistors from Phoenix Gold-based ON Semiconductor, EPCOS magnetic core transformers, ELNA capacitors, Rubycon capacitors, Wilma capacitors, Nichicon capacitors, gold-plated circuit boards and other well-known high-quality components from around the world.