An amplifier amplifies voltage or current. The most basic amplifier consists of a transistor where a signal is fed into the base and is output to the emitter or collector.For simple, low frequency...
I wouldn't...first most after market amps require a certain amount of power for proper function, such as a good ground, a good power source, some sort of RCA audio input, and a remote turn on. I know...
Amplifiers are used to strengthen analog signals. Analog signals become weaker after travelling a certain distance,they need to be amplified so that the data is not lost on the way and reaches intact.