The SX-series amplifiers are setting a new standard in performance. They feature the newest and most exciting creations from the Phoenix Gold engineering team. These amplifiers are ultra-compact in size, so that they can be mounted just about anywhere. Just don’t be fooled by their small size, these amplifiers deliver some serious performance. We have created a full-range Class-D topology that seamlessly delivers outstanding sound quality that even the most critical listener will enjoy. The Class-D design is ultra-efficient, resulting in lower operating temperatures and less strain on the vehicle’s electrical system. These SX amplifiers are the perfect balance of power, size and efficiency.