JBL DrivePack® units incorporate Crown Audio's BCA (Balanced Current Amplification) Class I circuitry, with temperature-compensated modulation. Crown's state-of-the-art feedback circuitry enables lower noise and distortion specifications than any other high-power switching amplifier on the market, allowing JBL DrivePacks to set a new standard for low-noise and distortion performance in digital amplification. Three-channel units offer a full rated output power of at least 6,000W Peak, 3,000W Continuous. This is accomplished with a highly efficient passive cooling system using optimal heat spreading for overall cooler operation...without noisy, expensive cooling fans. When driven at the high levels often required for professional sound reinforcement, JBL DrivePacks can provide even higher fidelity than traditional analog amplifier circuitry.