Optimus VP-3304 is a digital power amplifier with energy-saving design and lightweight construction. It features 4 channels of class-D digital power amplifiers, which contribute to its energy efficiency. The front-mounted LED indicator provides operating status indication and the stand-by mode can be set to reduce stand-by power consumption. With a rated output power of 300 W per channel at 100 V line, it can deliver powerful audio for various applications.