Powersoft Quattrocanali 4804 DSP - Four-Channel Install Power Amplifier with DSPQuattrocanali 4804 offers the traditionally amazing sound quality and reliability of all Powersoft products. The patented SRM (Smart Rails Management) technology allows to maximize the efficiency of the system and drastically reduce power consumption in any load and usage condition. Quattrocanali features the lowest thermal dissipation in the industry, reducing the need for external cooling devices. Quattrocanali is designed to operate with Lo Z (from