*We are an authorized Hifonics dealer* The *Mt. Olympus HERCULES* from Hifonics has been engineered over two decades for a perfect balance in sound quality and power. Ultra D-Class™ technology is at the very nerve center of our flagship Mt. Olympus. The proprietary "Ultra-D" design uses high-speed microprocessors with proprietary D/A conversion algorithms to efficiently control the Mt. Olympus current consumption. At very high listening levels. Hifonics Ultra D-Class results in lower distortion, higher current efficiencies and less heat than conventional D-Class amplifier designs. Compared to the competition, Ultra D-Class amplifiers are easier on your car's charging system.