If you're into music, discover how an outboard amplifier can add new life and authority to your system. The power and sound quality of an external amp is far superior to the performance of a car stereo's internal amplifier.

Mono amplifiers offer maximum bang per buck for driving subwoofers. They deliver more power at lower impedances, so you get more flexibility in setting up and expanding your system.

A 2-channel amplifier can make a world of difference in your car's sound system. Power a set of speakers, or switch to mono mode to drive a sub.

You can use a versatile 4-channel amp to power your front and rear speakers, or switch to 3-channel mode to run a set of speakers and a sub.

An all-in-one 5-channel amp powers your entire system, with four channels for your front and rear speakers, along with a separate mono channel for your subwoofer.

These packages allow you to improve sound quality while retaining your factory radio (and, in many cases, your factory speakers). Vehicle-specific packages contain all the hardware and wiring you need for the installation.

Shape the sound of your audio system with these equalizers and signal processors, which allow you to adjust and organize the signal traveling from your receiver to your amplifiers.

A sophisticated amplified car audio system requires a crossover network to direct the right frequencies to its various amplifiers and speakers.

Signal processors maximize the performance of your amplifiers and speakers, and adjust your system for your car's acoustics.

You'll find a variety of bass packages here, from a simple subwoofer/box combo to a full-fledged amplified multi-sub setup.

A factory sound processor allows you to add amplifiers, speakers, and subs to your vehicle, while keeping your factory stereo. You can maximize the performance of your amplifiers, and adjust your system for your car's acoustics.

Line drivers boost a car stereo's voltage level to the maximum level accepted by your system's amps and components, so you get maximum performance with minimum noise.

These factory system expansion controllers allow you to add sources to your factory radio, so you can build an audio/video system while keeping your factory look.

Top-quality wires, cables, capacitors, fuses, and more