I-Tech HD series amplifiers are one of the most technologically advanced professional touring amplifiers on the market today. Building on the decades of innovation, invention, and insight Crown is known for, the I-Tech HD features five new patents three on the power supply alone. New I-Tech HD is the BSS OmniDriveHD™ processing engine. Four times faster than its predecessor and featuring linear phase FIR filters and LevelMAX™ limiters, OmniDriveHD™ provides unmatched clarity and sonically pure signal processing. With the latest programmable studio-grade 32-bit Sharc® processors with enhanced SIMD architecture and a proprietary D/A output filter for improved signal-to-noise at least 6dB. Universal power supply with power factor correction technology adjusts to any frequency or mains voltage between 100 to 240VAC in a controlled manner and in real time, can use it anywhere in the world and it will always deliver full power. When compared to traditional, non-switching amplifiers, the I-Tech HD series weighs an average of 50lbs (22.68kg) less. Additionally, the patented universal power supply with power factor correction combined with the patented Class-I PWM output stage of the I-Tech HD series provides greater than 90% efficiency at full power from 100 to 240VAC. Five-year, no-fault, fully transferable warranty on every new I-Tech HD series amplifiers.