The amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.
General Features
Some amps include circuitry that allows you to boost the bass output. In some cases it is simply a knob or button that provides a set amount of boost, and in some cases it may be a built-in parametric equalizer with many possible configurations and adjustments.
Number of RCA outputs. An RCA output lets you pass the preamp signal to additional amps, and in some cases the internal crossover from the first amp can send a filtered signal, eliminating the need for an additional crossover.
Useful if you're adding an amp to a factory radio, or don't have enough preamp outputs on your aftermarket receiver. Speaker Level Input Types: Harness, Speaker Terminal, RCA.
