The H4000 amplifier gives you clean, dynamic power with sound quality and reliability and delivers true studio-quality sound. The power supply is the heart of an ampli?er, converting raw AC power from the wall to clean DC for the audio circuitry. The H4000 uses a powerful high-current toroidal transformer and ample ?lter capacitance to ensure generous energy reserves. This makes a critical difference in sound quality, allowing the amp to effortlessly punch out high level transients, even when driving a very low impedance.