Whether you are adding a subwoofer to get more hard hitting bass, or just looking to improve your current tunes, an amplifier is the key to a better sounding system.
An amplifier allows you to increase the volume of installed speakers without sacrificing clarity. Your car’s radio has a small built in amplifier that does not produce a lot of power. Better speakers require more power to run efficiently and an amplifier provides that power.
While most people think power is only needed for volume, excess power is also needed to accurately recreate fast transients such as a cymbal crash or other dynamic change in sound output. Without enough amplifier power, the signal is clipped resulting in distortion.