The first step in system design or building with amplifiers is to determine your needs. If for instance you are only planning to add amplification to your factory speakers or “basic” upgrade, then a small inexpensive amp will do. If on the other hand, you have bigger expectations than you may need a number of multi-channel amplifiers.

The next step is to determine it you need an amplifier with specific built-in crossovers or an amp that is dedicated to playing a full range signal. Built-in crossovers are just about standard on any new amp that you purchase. They cross over different frequencies dedicated to a particular speaker or set of speakers. For instance, » Read more: What to look for in an Amplifier