Zapco ST-X Series: this series of amplifiers is designed to provide high-quality sound in an affordable package. They are known for their sonic purity and reliability, and are a great choice for anyone looking to upgrade their car audio system.

The ST-X Series amplifiers are available in a variety of configurations, so you can find the perfect one to meet your needs. The ST-2X is a two-channel amplifier that is perfect for powering a pair of speakers. The ST-4X is a four-channel amplifier that is perfect for powering a front and rear speaker system. The ST-5X is a five-channel amplifier that is perfect for powering a front, rear, and subwoofer system.