Inside and out, the I-Tech HD is 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 ? giving you an amp that goes well beyond the expected. At the heart of the 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.