Take everything you've read about the remarkable, redesigned KX Stereo Amps with more than enough options and power choices. From 4x50 watts to monstrous 4x215 watts, the KX.4 lineup has the answer for every install. Look for convenient remote control and circuit-cooling fans in the KX650.4.

Rockford Fosgate, division of Rockford Corporation, is a world leader in the design and manufacturing of high-end automobile sound equipment.

Pioneer PRSD4100F: 1200 Watts Maximum Power. Bridgeable 4/3/2 Channel. ICE-power Full-Range Class FD. Get Pure Sound using Pioneer PRS Amplifiers. The goal of a good amplifier is to cleanly amplify the music signal, free of distortion or added color. The Premier PRS-D4100F is a new generation of Class FD (Full-Range Class D) amplifiers that clearly achieves this goal.

Slash-Series Amplifiers : Slash amplifiers offer phenomenal stability and application flexibility thanks to JL Audio's unique R.I.P.S. (Regulated, Intelligent Power Supply) technology. They also feature patented low-distortion Class D and Class A/B MOSFET output stages, RealSink™ heat management and comprehensive signal processing sections, making these amplifiers the perfect choice for those seeking a higher level of automotive amplification.

Sony's worldwide reputation for creating unique, attractive, high-quality, advanced technology products rests on a long line of innovations embraced by people from all walks of life. With a diverse product lineup serving a variety of lifestyles and industries, Sony continuously strives to introduce new products and technologies to meet changing market needs.